Champions that don't allow you to fight back are the problem
Champions like
and others have one thing in common they all PREVENT you to fight back unless you got hard CC or the ulti from Camille.
That is the main reason FIora was reworked cause her ulti offered no way to fight her. The inability to auto attack a jumping around Riven doing mini knock ups and stuns and on top of that she has a shield and burst is SUPER frustrating. Same thing with Yasuo and others, being powerless to fight back is the problem in this game.
yes he was a bit over tuned after his rework but generally never cancerous to fight.