This serves to underscore why I think it's just easier to assume all hit points involve some physical component. Rather than look at the whole pool of hit points and say the first x hp are luck, the next y hp are morale, and the final z hp are physical or what not, I prefer to think in that way per individual hit point. A hit point may be mostly morale, luck, and divine grace but it's also a small fraction of physical. Thus, all hits involve some physical beatdown, though not necessarily much. It may be a bruise, a welt, a scratch, a scrape, a gash, a puncture, a strained muscle, a slightly turned ankle, whatever. I don't really care much about specifics. What I really care about is that every hit that penetrates the PC's protection has a physical effect.
I think this makes the game a lot easier to visualize consistently and design around consistently rather than have some hit points be one factor (morale) and others another (divine grace) and yet have both healed with something that is described as healing wounds.