Something like that could work well with NPCs but would most likely introduce delay into the controls on the player character.
Basically gameplay beats the animation in this case. On top of this a lot of the time you don't see your characters feet or if you do you are not really focusing on that during gameplay and won't notice them sliding.
I suppose that's true. I just find it jarring that they've made their decisions for that based on reactivity whereas the entire visual style/physics etc are all "realistic".
Once we figure out how to render games in true photorealism, it's gonna be so interesting to see how often studios make these sorts of stylistic/practical choices with animation.
Basically gameplay beats the animation in this case. On top of this a lot of the time you don't see your characters feet or if you do you are not really focusing on that during gameplay and won't notice them sliding.