Its not, and most of whats you listed deal absurb damages. Are you seriously talking about Mundo ?? This sh*t is so broken atm and unless you outstat him with an Aatrox (statcheck too) its really hard to manage him alone.
Them dealing too much damage at all phases of the game is because of the runes system.
Tryn didn't use to smash your face in minute 7, he was quite weak early game and only had his cheese lvl 1 + 2 strat to get an early kill and after level 3 he wasn't able to duel a lot of champions.
Since he was only able to auto attack he wasn't able to cheat out damage, like for example Darius with an Auto attack reset and his ability to "block" an auto with his cc.
That was Tryndameres weakness, his early game outside of level 1 + 2 was poor but of course we just threw that out of the window with implementing these runes and making it so a crit from him takes away 25% HP level 4 and look what happens.
Now it's blury, you don't really know when to punish him, you just know that when his fury is up you shouldn't engage but you kind of need to engage since he is a scaling champion and you aren't so you need to get an early lead.
See what I mean with breaking design philosophies?
Those were built up for a reason.
Its not wrong, its just true. Just look at Yasuo you can avoid most of his damages (trust and tornado), look at Camille you can avoid her E and W, and even her Q have a timer.
Yasuo has plenty of counterplay yeah.
Difference between Camille and Tryn is that Camille has a dash so fast and so far that not even the LCS cameraman can follow her into an engage.
She is not kiteable, she is either on you or she isn't, there is no in-between.
Tryndamere on the other hand has a dash with the length of an Ezreal blink with the same CD as Camille dash. He is very well kiteable as long as you aren't alone which brings me to your next point.
unless you outstat him with an Aatrox (statcheck too) its really hard to manage him alone.
He is not meant to be managed alone, he is a splitpusher, you can't manage any splitpusher by yourself because if you could then why even pick a splitpusher when he can be 1v1'd by any bob in the game.
The enemy is suppose to send multiple people after him so your team can secure an objective easily, that is what a splitpusher is here for.
In return they are dog shit in teamfights, ever saw a Yorick in a teamfight?
It's like you are fighting a 4.5 vs 5.
Tryndamere doesn't get to anything in a teamfight, way too much cc for him to deal with and he has to pop his ult too soon since 4 ppl will be focusing him.
Same for Aatrox, this gey gets blown up too fast in a teamfight for him to be able to teamfight effectively, so he splitpushes and forces multiple people to come to him.
That is a splitpusher
But of course Riot said "nah fuck this" and made Camille /Irelia which cannot be 1v1'd either but are one of the best teamfighters in the game!
Which brings me to your next point
If you don't understand how work this game its not my fault. They belong to diver class. Their disengage is their engage. And in Irelia case she go in... and she has no mobility to escape herself unless they're minions in favorable position.
A diver?
Camille is a diver?
What kind of diver is that m8?
Compare her to other divers
They go in, and they stay in there. They don't have a dash that can travel from dragon pit to mid lane which could be used to disengage too.
So it's not really diver is it?
She has tools to engage but also to disengage so she is more of a skirmisher like Jax/Fiora?
You would think that until you realize that neither Jax or Fiora have the same dive potential than her!
So she is a Diving Skirmisher!
You would think that until you realize that Camille has a Darius 5 stack ult on her 4 seconds cooldown Q.
So she is a Diving Juggernautskirmishers! wow what a class!
Camille lacks any form of significant weakness which makes countering her nigh impossible and it feels like you can't ever kill her in lane unless she makes a mistake.
His ult is conditionnal... so its okay.
So you would just give Darius 2 dashes and justify it by saying his ult is conditional?
Old Irelia's stun was also conditional why did we change it then?
The issue with Zoe come from balance team, if they stop playing with their d.... Having OS potentiel every 3 sec is an issue can be solve easly with number.
50% winrate =/= healthy
It doesn't matter how much you fiddle around with her numbers (unless you make her complete dogshit)
I think this comes down to you not knowing what old Nidalee was.
She threw a spear from far away and chunked people for half HP or so, the spear didn't go through minions, it's basically the spear she has today but with a larger hitbox and more damage.
It's not like she was OP but it was deemed an unhealthy playstyle so it got removed.
You might remember lethality Varus? also known as legolas Varus?
Yeah that one also got nerfed for the same reason as old Nidalee, he just half HP'd people from 1000 units away.
Actually AP Reksai got nerfed because of that too!
Her long range tor%%%% or whatever that is, used to have a 1.0 AP ratio, now it's 0.7. It got nerfed for the EXACT SAME REASON!
Now we re-introduce it like those things never happened, expecting the playstyle to work out this time.
No it doesn't, it's not fun to play against and it never will be, doesn't matter if it has a 50% winrate or not.
Its not about fun, its about fairness. When trynda right click you and then lucky enough to crit... its all but fair. I don't miss old Talon. LB still stupid, Kassadin need an update.
Only Talon is fair... when not op (he's atm).
If it isn't fun then why even play?
Both are important but if it isn't fun then nobody will play the fair/balanced game.
Imagine a champion that does absolutely nothing but sit in base for 40 minutes but don't worry he is fair with a 50% winrate!
Does that sound ok to you?
I'm not talking about old Talon/LB/Kassadin
I'm talking about silence era of Talon/LB/Kassadin
If you don't remember old Nida then I think you also never played against them.
Imagine current LeBlanc but you can't retaliate on her when she engages or use any defensive abilities like Barrier.
Imagine the same with Talon.
But the thing is, they had 50% winrates!
But we still removed it.... because it was unhealthy doesn't matter if it had a 50% winrate or not.
Kassadin was a whole other problem in a whole other class (98% banrate in rankeds, the highest ever banrate in history of league, not even release Camille with 80% topped that).
hum... most of Irelia and Camille kit are OK, all the kit of Zoe is OK IMO. i would change Camille ult point and clic tho, and change Zoe number. with so much utility she dosn't need so much nuke.
If we continue down this road then no champion will ever again have a singificant weakness and half the champion roster will have a mechanic that makes it so you want to rip your eyes out.
+ 
?
is the pure example of stat check champion, he needs a rework and doesn't need buffs or nerfs
's R is still worse. My beef with Tryndamere is that he just split pushes all day. You'll never see him in a teamfight until he's already right clicked his way to your inhibitors.
Easy my friend. Not the full damage but still stacks faster.
