To be fair, I tried Lethality in Jinx once, and almost immediately regretted it. Moment I swapped to her usual ad, crit, and flat pen build, my impact skyrocketted. I do agree that Lethality still has an usually strong hold on the game, somewhat bottlenecking and already strangled item system for the game. But this has never not been the case for this game, and in all honesty, is still more diverse than it has ever been in its past seasons.
I do strongly dislike how snowbally the game is though. Losing games due to a few deaths in someone else's lane, despite how well you're off, crippling your own strengths and exploiting your weaknesses due to that unfortunate circumstance. It sucks. I like the game, but the feeling I'm typically left with whenever it comes to the reason behind unanimous losses sucks, and not for the right reasons.