Yasuo's autoattacks do not look or feel powerful

I think it's VERY cool how he sheathes his blade, but the autoattacks themselves do not look or feel effective.

There's a difference between doing a lot of damage, and having animations to back up the feel of being a heavy hitter. Compare Darius's autoattacks to Yasuo's. Darius's attacks are long and cleaving, while Yasuo literally kind of just slaps his target's face with his sword. He simply slaps them with his sword. That's it. He doesn't even stab (unless you count his Q), he does not slash, he....slaps. What?