No need to bring realism into the scene. Narratively, it doesn't. I'm not really aware of any example in fiction where someone's wounds are healed because of encouragement and inspiration. There are examples where people ignore their wounds because of it - even wake up from unconscious because of it - but notably, the wounds are not healed, they're simply ignored. That points at die-hard mechanics, not healing.
There also aren't any examples of peoples wounds vanishing with an hour's rest without some other agency at work beyond ordinary natural healing.
But you are able to credit natural healing with that. So it's not just a narrative thing, there's an additional factor here...
Heroic fantasy protagonists can and do. Narratively, they have taken the time to repair the damage long enough so that it isn't life-threatening. There's maybe some tenderness, some scarring, maybe soreness, maybe it still oozes blood a bit.
So wounds needn't actually be healed to restore hps. You can be at full hps, and still have wounds, they've just been stabilized.
And, wounds can be stabilized with a heal check, or you can stabilize on your own with successful death saves, so treating the wound physically isn't /strictly/ necessary.
And even if they have been treated, they're not gone, so even under the 'narrative' you're choosing, you can be wounded, and at full hps, meaning that the restored hps are not all a matter of healing the wounds. If they were, the wounds would have to be healed completely.
I don't know of any real narrative examples of people being encouraged and having their vitality sped up such that wounds heal within seconds without the application of some kind of mystical force.
There are also no such examples of wounds healing in an hour without some sort of mystical force.
I know of examples of people ignoring the effects of injury, but, again, that's not healing.
I see nothing wrong with ignoring injury as hp restoration.
Apparently, you're OK with it as temps?
BTW, how do envision temp hps in this 'narrative' of yours? A character given a fairly big chunk of temps is wounded, but still had temps left. What's the 'narrative?'
I'm not sure exactly what you mean, but that sounds close. If you wanted to make a "martial" character who teleported across a 3' wide stream, I think that would break the narrative (there's no narrative precedence for teleporting without, essentially, magic, ultra-tech and the like included).
Agreed. OTOH, I'd have no problem with 'teleport' as a mechanic (jargon) that did not involve /actually/ teleporting, merely allowed something that could be convenient modeled with it.
If you want to make someone who can inspire wounds close without something supernatural, that would break the narrative in much the same way.
But, if inspiration speeding up healing had a natural basis, it wouldn't be supernatural, and it'd be OK for preternatural or extraordinary or superhuman inspiration to do so. Right?
Frankly, this premise that every class in the game must allow every mechanic in the game to be interpreted any way anyone might like strikes me as a bit of a stretch. Magic in D&D, for instance, little resembles the narrative of magic in any genre source, and any number of gamers might want very much to envision a very different narrative of magic than vancian memorization or neo-Vancian prep-and-slots. No accommodation is made for that.
But I'll set that aside for now, if we can find a 'narrative' rationalization that works, or an alternate mechanic that is workable, we won't even have to go there.