Yes, Lee Sin's Win rate is 50%+ Now, here's why
Yes, As anyone who takes a casual glance at the Gameplay boards will know, Lee Sin has, for the first time in ages, passed 50% win rate. Everyone is talking about the different nerfs he needs to push him back below, yet very few people are asking what pushed him above. Lots of people have theories, but in the end he hasn't been touched in a few patches now, and his win rate spiked tremendously this patch in particular, so something had to happen now. And it did.
Krugs LESSER KRUG EXPERIENCE 5 ⇒ 15 (Ancient Krug and Krug unchanged)
That change right there kinda broke the jungle. It's now possible for Junglers to get lvl 3 by clearing 2 camps, Red and Krugs. Any early pressure jungler, Such as Lee Sin, can then go on to gank a lane at 2:30 with lvl 3 and a red buff, which is absolutely insane map pressure. This change is the reason his win rate has skyrocketed.
Now, Riot has already stated that this lvl 3 cheese strat was an oversight, and they will fix it. Let's wait and see what happens to the Blind Monk once he can't do that crap next patch. See how far his win rate drops back down.