Question time: What have those champs in common apart from the fact that they are annoying as hell?

It's the fact that they are all build around a mechanic that should have been kicked out the moment dodge was removed - and that leads to horrible ingame experiences. Tryndramere's usual "crit roulete" in lane, making him win by pure chance, Shaco is so OP early that his lategame has to be reduced to a melee minion that likes playing with knives (a design that breeds toxic behavior btw. if you do good all game and still lose... well, not really motivating.)
But the worst offender is Yasuo. I have honestly not a problem with his abilities. No, but the crit passive is what has to go. If that's gone, maybe buff him, idc, bust just get that crit out of there (force him to build attack speed if you don't want him tanky).
Usually a champ with let's say 200 AD and 50% crit has an average damage output of 300 + damage peaks are not guarenteed. Yasuo with 200 AD and 50% crit from items/runes has a solid 360. On every hit, not adding the base damage of his Q which can also crit.
That's what people are pissed about actually. One AD item, yet deals more damage than anyone else on the field as he can effectively double his base AD.
Can't we just remove crit already? There is literally nothing good that it adds to this game. NOTHING.
Ah btw, and since we are talking about shitty mechanics, can we remove spellvamp already and rework vlad? Thx.