Sigh people still think wind wall, dashing or 2x crit is an issue.
Wind wall is clear and obvious to play around
Dashing is to enemies only
2x crit requires crit and his crit debuff+omen can do a number on it.
The real issue is after the LW changes LW is a lackluster item and thus since yasuo can turn any tank item into a LW it's ruining his mechanical skill and dumbing him down pisspoor easiness. And unlike crit, he doesn't have to build armor pene to benifit from 50% free armor pene just ulti.
It's giving him far too much hidden power because there's no real way to get around it, crit there's omen, Windwall you can still move and reset a teamfight due to it's CD, dashing is enemies only which can be used against him. But 50% armor pene? Tanks will die no questions asked, there's nothing to actually prevent it and it's far more reliable than GP's barrels(the barrels are another issue though :P).
People keep misguiding the issue as windwall, 2x crit, or mobility which are pretty obvious in terms how to beat. But the free armor pene which makes any tanky item a better LW is really breaking yasuo quite hard.
However there's really no suggestion to be made to fix it, simply changing the bonus isn't the answer because it can't be something to help kill squishies but a way to take out tanks in a more counterplayable way than free 50% armor pene. Shame they tried to mirror riven when making yasuo cause now they have a huge hidden power balance issue and there's no fair way of fixing it. (By fair I mean fix the issue of blowing up tanks and non-LW buying without making it easier to kill squishies)