Why not use yasuo's "Focus" for something better?

Yes I hate yasuo but I'm not one to complain about him as I simply avoid playing against the champion all together. This is mainly just a suggestion to see what people think of this sort of idea.

Yasuo can only use critical strikes for a short duration after the activation of Resolve. He'd lose his shield passive and couldn't critically strike normally but instead once he activates resolve with his next auto attack or Q, he gains the double critical strike chance passive or even a flat 100% critical strike chance for a short duration after. This gives him an actual window for people to play around and means he also needs to actually work for his high crit chance.

Also as someone else suggested: Give his windwall a 1 second duration, longer cooldown, smaller size, but give it a charge system. This would make it so that the ability would be used in a more skillfull manner. Rather than simply throwing it up and running around, it'd force yasuo to use it conservatively to block key abilities rather than cutting off all projectiles for the duration of a short fight.