Level Up & OSR Enthusiast
I'd much rather reduce hit points across the board, but your other refutations of my post have merit, and I accept your rebuke.Inconsistent with hp usage, sure for both good and ill.
If a complaint is "Creatures have too much hp, such that the class whose sole focus is on killing things can't efficiently kill things" one solution is to go through and retune every creature's statblock, and all spells and abilities that interact with hp. Easy job, right?
Another is providing some limited way for the "solely focused on killing things" class to bypass hp and actually kill things.
If it is no more complex or unbalanced than existing spell mechanics, I don't see an issue.
As far as complaints about verisimilitude,
1. You haven't made any sort of argument for how such abilities would be problematic
2. People can care deeply about verisimilitude and have different opinions from you about what sorts of game elements should be problematic for it. Framing such a discussion in terms of "cares about verisimilitude" and "does not care about verisimilitude" is unfair and in most cases, simply untrue.