The only reason I dislike Yasuo is because of his windwall

I get it. He's a wind wielding samurai with precise cuts and fast agility. Being a champion with one of the highest potential mobility in the game, double crit chance at the cost of low ability damage with CC and even a passive shield for moving. I am completely fine with that. I just can't stand how seemingly forgiving windwall is towards Yasuo though. That ability makes and breaks teamfights alone, and it doesn't have any sort of requirement for Yasuo to active, other than a press of a button and a direction to put it at. It just lasts so damn long that it can block entire ultimates; a basic ability that's capable of completely nullifying any projectile ability in the game with no cost is just not fair for anyone.

I could accept windwall as an ability if it was used as a skillful block, being that it pops up and lasts for about 0,25-0,5 seconds before dissapearing. If it was like that, I would actually feel like I got outplayed by skillful timing.