I get the feeling your comment was not asked in earnest but I'll give an earnest answer anyway. The fact is that relative to basic abilities Yasuo windwall has a very long CD, one of the highest in the game. I can believe the ability is unfun but melee characters often need a defensive spell in order to makeup for them being outranged by ranged characters. These defensive spells, whether in the form of pure defensiveness like Windwall, or in the form of CC, might feel frustrating to some players, but they are necessary for these characters to function. One of the primary ways of skill expression in League is also playing around cooldowns, and that can be expressed through playing around when these cooldowns, and punishing the champion when they are down. If you are feeling particularly frustrated, try engaging in this counterplay