Why is the game balanced based on the "the pro scene"?
There are tons of champions that need nerfs or changes no one disagrees on that, but it seems they only nerf someone if they're literally broken or a pro team wins does good with them. And certain champions that need buffs cough
cough won't get buffed until they're destroyed on a pro match. A champion like Yi 'needs' to be nerfed other than just the devourer being nerfed, which I agree with. Do I think there's literally zero counter play to Yi? (almost) no, but he's not just stronger than other junglers, he can kill an entire team in seconds unless he's stunned which everyone on the forums just screams at anyone who says he's overpowered but then they forget there are 4 things in this game that turn off stuns, Banshee's,Cleanse,Scimitar, and Morgana. And really what champion isn't useless when stunned, it's not a unique weakness to Yi but Yi has more counterplay to it than a lot of champions do. He has his Q which you can't stun him during, not jokingly he moves too fast for some CC and can't be slowed, and he has his 70% damage reduction channel that heals him for 110+ health per second and he does true damage every attack.
And to finish the Yi part of this post, if stuns counter every champion (they do) and one is more powerful than every other jungler when not stunned, they're overpowered.
Gnar was also one of my favorite champions and I still like him but he's not even close to viable, his Q was never a great harass and his only damage was in his W which is pretty weak and I thought I was the only one to say "Gnar has no damage and literally the lowest defense stats in the game and his tank-mode doesn't let you do damage if you max damage, but if I build tank I'm always tank and I have respectable damage" and he was somewhat viable if I built Atma's on him but obviously he was still only useful in the late game for his Ult and in the early game for his kiting but my point is that I have no idea how anyone could argue that Gnar is powerful against anyone but Shyvanna and he falls off late game like a skydiver in October.
This is just a few of the examples, there are tons of problem champions because they're too weak
or because they're too strong
And the only ones that get changed seem to be the ones that get played in pro matches