Idea for Yasuo's Passive Shield & Windwall

Why not combine them into the same ability? Actually the idea is a little more complicated than that so here's my 2 cents:

Part 1: Yasuo's Shield Passive is moved to his W. However, instead of statically sitting there like a worse version of Malzahar's Passive, it behaves more like Night's Veil: forming a defensive barrier when Yasuo activates it.

Part 2: Windwall no longer has a cooldown. Instead, the ability only becomes available whenever his Flow bar is completely filled. Casting W in a certain direction will activate Windwall, while self casting W will activate his Shield. He can only use one of the two whenever he gets 100% Flow, however.

This is just a fancy little idea I had a little while back.

It makes a bit of logical sense, as building up his Wind power would also affect his Windwall.

It also goes along with Riot's decision to make cooldown reduction a completely worthless stat on Yasuo.

Finally, it removes a bit of frustration from playing against Yasuo, as now you can actually tell when he has his game-changing basic ability available.

I don't play a whole lot of Yasuo, so any Yasuo mains feel free to pick this apart. Just wanted to get it out onto the boards as a legitimate idea that I thought was pretty cool. Thanks for reading!

EDITED FOR FOR BETTER WORDING