Yes, I am calling 100% crit chance low burst, because even though one auto attack probably hurts a lot, he can't 100-0 you with one combo unless he's extremely fed.
His ult is gated behind him landing a slow, telegraphed skillshot. If you side step the tornado, he doesn't have an ult, and consequently, does not have a free shield.
You don't need to spend mana to break through his shields. Auto attack him once while his meter is full, wait literally one second, and he has no more shield.
Yasuo can be outplayed. That's the whole crux of his design. Yes, he's extremely mobile. Yes, he can block projectiles. Yes, he can have a lot of shields. However, everything he does is telegraphed and avoidable. You know when he will have a shield. You know when he has his tornado. Windwall's cooldown is ferociously long. You have all the power to avoid and mitigate everything Yasuo can do.
Further, he needs to push. His mobility damages the wave. He needs to land his Q to charge up the tornado. Yasuo needs to constantly be in contact with the wave, which means that his wave is always pushing to you. If you do nothing but last-hit, he will be forced to stand very far forward for CS, making him easy to gank and easy to chase down for a kill.