Yasuo's ability to get back into the game is second to none
I'm a GP main. GP is literally all about stalling till your powerful and can make a big impact. GP is purposefully weak early to keep his late game power in check, ergo why he is balanced right now.
I played against a Yasuo the other day of whom I dominated in lane (he was 0/5 I think) and he still managed to get back into the game. He damn near almost won too. But it's honestly a bit mind boggling seeing as how I'm playing a champion MEANT to be strong late and the Yasuo just had to get a few picks here and there and was able to surmount a comeback. All jokes aside, I think a good focus point of balancing Yasuo and champions *cough
coughlike him would be just to give them a clear window of weakness. The recent nerf to the amount of time he can hold his Q was a very good step in the right direction.