Anyone Else Feel Like Class Updates Aren't Very Successful?

Let's look back to what I feel is the beginning of all of this: the juggernaut rework. Out of all of the champs in that, Darius just seems to be the one that was the most successful. The rest just flopped kinda. Garen is still basically a stat stick, Skarner is now clarified as a Vanguard now (have no idea when this happened) and Mordekai- I think we all know by now where Mord is after all this.

Now the Marksman Update: Kog was ok but then nerfed and then reverted, not even back to what his old self was, Cait as of now is kinda dominating especially with her "place traps behind tower so they can't see" bullshit, Graves is a drain tank essentially, and Quinn and Corki... I actually don't see them too often

Then Mages: Malz was fairly OP then nerfed now is support and getting nerf again to almost being unplayable, Vlad was just insanely stupid and is either the OP of the game or left in the gutter, Ziggs can arguably be problematic with his new kit and his rise in bot lane (though to be fair it does make good diversity and is insanely fun) oh, and Syndra was just a pain since she became extremely easy after that (before her recent nerfs).

And of course, the recent assassin update: Rengar is still Rengar except now from what I hear he can build semi tanky thanks to his new passive damage boost, Leblanc continues to delete people and has a ridiculous range on her tether break, Fizz is kinda screwed up thanks to how his ult works now, Kha'Zix is just gross to play against, the list goes on.

Just... who else feels like whenever Riot does a class rework, something, if not the entire rework, is going to get screwed up or in the long run is not going to work as they'd hoped? This is basically the point I've come to expect of any more class reworks Riot plans on, especially with their announcement of the tank rework.