Honestly, I have hate for Lee Sin not because of his mobility.

Plenty of champions have crazy mobility to name a few.

The reason I hate Lee Sin is because he's so damn safe while also having mobility with no draw backs, while having great utility and damage.

What I mean when I say Lee Sin safe with great mobility with no drawbacks I will explain in a moment.

Imagine for a minute you catch an enemy Ahri greatly low in the jungle, with nearly no HP. You go in for the kill, and she blows all 3 of her ultimate charges to escape death. This means a lot, while I absolutely despise Ahri because I find her obnoxious making her blow her ultimate to escape does hinder her damage potential greatly, and make her more vulnerable. Now lets replace Ahri with Lee Sin, what does Lee do you ask? He either ward hops away while kicking you or simply kicks you screens away, and then loses out on another because by the time he's regenerated his HP and gone back into the jungle his ultimate is off cool down. Even if you manage to catch Lee Sin out again, he ward hops or Q's over terrain to escape yet another death. This isn't me simply making this up, this is my experience against countless games playing against Lee Sin.

This is the problem with Lee Sin, punishing him for his mistakes is basically IMPOSSIBLE. You don't play against Lee Sin, he play's exclusively against you however he wants while you can't do a damn thing. If he doesn't want to fight you, he won't and you have absolutely no say in it. Likewise, if he wants to fight you he does.

The nerf to Lee Sin is quite simple, remove ward hopping. Katarina got ward hopping removed because Riot thought she'd be oppressive with her already good mobility, and I don't exactly know why Braum got it removed because it never really proved much of a nuisance. Lee Sin on the other hand, gets to keep it...