I'm totally okay with Lee Sins current state of Riot continues to buff other junglers
For example, these Nautilus buffs look great on paper, these Hecarim buffs look great on paper, Skarner is receiving Tristana style buffs where he's slowly buffed with small buffs here and there and eventually someone will figure out he's good or a shift in itemization changes and bam, skarner. If Riot continues to buff other junglers, this is as good a solution if not better than nerfing Lee Sin again. Yes that's right, no nerfing Lee Sin.
The thing is, in reality Lee has one of the most overloaded, overpowered kits out there - but he really does fall off late game. When other junglers have challenged his supremacy, it's because they had similarly good early games and much better late games - then they would get destroyed by nerfs while Lee would go untouched for patches, making Lee the only consistently God tier jungler. Think about it: Elise, nerfed. Eve, nerfed. Pantheon (just as strong as Lee early, probably a bit weaker late), nerfed. Wukong nerfed. Hecarim nerfed. These nerfs go back as far as season 3, early season 3. And this pattern has continued for basically the entire duration of Lee Sins existence. The difference between him and other champs is, he has so much stuff, he can survive nerfs. And he has so much power invested in his early game while still have a shread of relevance late game, it's almost dumb not to pick him.
But, if riot continues these buffs that allow other junglers to thrive, the Lee Sin problem might just go away. He will still be picked no matter what but he might not be the best jungler by far anymore. And riot needs to stick to their guns on this one, junglers kind of need to be overpowered, not because of the joke thread I made the other day but because their gold income is so limited. The concern you have with buffing them too much is suddenly someone says fuck this, I'm landing them and getting 4-5 items on God tier late game junglers by 25 minutes instead of 40+. But, if riot continues to buff fighter classes, some of these cases simply can't happen because skarner and Hecarim as examples would never survive the rough and tough laning experience that top lane can be, and that's not limited to just fighters.
Either way, I support these buffs and I hope riot continues to buff them up. If Lee sin is still by far the best after this, then yes, the nerf cannon needs to be unleashed on him like none other until he gets a real rework that likely would take away some of his early power but make him more than just an insec play late game.