You just don't like beholders and will o' wisps, do you?
Oh get off it, both are clearly magical.
(Or at the very least have a supernatural force at work on them in the case of wisps...e.g. ghosts are a good example of arguably non-magical yet supernatural).
Human fighters are neither supernatural nor magical, except in superpower games, and maybe manga universes, where supernatural martial arts forces are at play (e.g. Star Wars' "The Force").
You can take some artistic license when they're "epic" and on the road to divinity, maybe, but otherwise it's kind of stupid and against type - IMO. Unless you're aiming for an anime feel, maybe (and I don't mean that in the derogative way it's usually used on this board), where shooting fireballs out of your behind after an especially good maneuver might make sense in the context of secret supernatural martial arts of some sort.
If D&D keeps peppering the fighter with borderline supernatural powers as a matter of course, then D&D has indeed turned into a superhero game. Not so hot, IMO. YMMV.
"Oh, but that's subjective..." Yes, it is. But some opinions are more equal than others.
I didn't say I ignore the issue or think one should. I just find it amusing when I see posts like yours which try to argue that their subjective tastes are somehow more accurate or laudable than others, and if I've got nothing better to do I sometimes post about it. That's all.
And I'm just saying that you can't just discount tastes which don't match
yours totally, which is what you're implying.
Pot, kettle, black.