Why not? I like them more than a just a normal hit that stuns or just a rush to the other side. Its a bit uncommon but better than just the normal stuff.
I can't speak for other people, but my personal opinion is that D:OS already has an entire field of combat devoted to attacks that look magical - namely, magic. I'd like my fighter (if I build a fighter) to look and feel like an actual fighter instead of a melee-range wizard who happens to be holding a sword.
I'm certainly not
against the concept of a spell that stuns someone by magically dropping a rock on their heads, but if the lore basis for the stunning is a physical strike made by a warrior, I'd like it to look the part.