I'm guessing you don't crit often enough to really enjoy some of the most expansive collection of sequences that make you go "WOOT!" provided by the developers of this game.

Crit with dual one handed on a dragon face to face and there's an opportunity to pull an "old dragon killer" move by leaping on his head and driving your blades through the back of his skull. Who gets tired of grabbing a wild wolf by the head and kicking him into your blade? My personal favorite is managing to sneak crit with daggers and watch my enemy go down.
There are a limited number and some of the animations take less time. Ask yourself this, though... what if you had to sit there and wait while the bowl filled with blood? Eventually on toon three or four you'd be like "omg, why don't they just let me cut to the end of this scene? why did they make me sit through all this every time?" and if not you, then someone, trust me. And they'd be all over the forums wanting something different.
I enjoy the living heck out of this game. It's turned a hardcoe MMO girl into a 200+ hours single player girl, that's for sure. And I'm not bored or done and I have few complaints... Bethesda, you rock!