Zed and Lee sin are not OP?

How could Zed and Lee sin possibly be OP? I mean yeah they are annoying to play against, but nerfing them will never solve the problem because their kits are so fragile. I don't understand why the community has such a hard lash against these two champions when their win rates aren't even that high. Zed struggles a lot now because of all the CC mids and BARD! Bard counters almost all assassins in some way shape or form. Lee sin can't jungle like he used to OR counter jungle because of strong tank junglers and the new GREAT cinder hulk enchantment. Honestly if you say they don't get nerfed because Riot wants BIG LCS PLAYS, you're wrong , these two champions are barely picked and their picks are VERY situational and risky because everyone knows how to counter them. So stop complaining about lee sin and zed changes/nerfs, they don't need them, maybe you as a player should change.