What’s in a melee attack? A sword as swung in any other way would cut as deep — or clip through as much geometry, in this case. Video games!
I’m not worried about clipping, though. I’m worried about control schemes and how to organise my animations to fit. Since melee attacks are going to be the core combat mechanic of all games I intend to make henceforth, there is just a teensy bit of pressure to get it right.