Fixing Windwall

My biggest issue with windwall has always been that it seems to spawn inside Yasuo and block projectiles that have already "hit" him, then slowly moves away from him but not very far. What if windwall had a cast indicator like Cassio's Miasma, where he can't cast it on himself, but has to throw it further out. Now, doing this may feel bad initially because he will be putting windwall likely on your face instantly, but it forces him to engage on you because he can't just get into melee, throw up windwall and become projectile immune for 360 degrees with a button press. It makes Yasuo HAVE to be proactive about Windwall, rather than waiting for that Veigar ult to already be inside his bunghole before clicking W backwards and flashing mastery 7 at you.