Except there is a rationale built in - a rest, even a short one, gives the fighter enough of a rest to recover them.
The idea that there are resources that refresh with sufficient rest isn’t really the problem. The problem comes from how those are structured. If the battlemaster had 4 maneuvers, each of which he could use once, but only once each, per rest, then you’re looking at the kind of structure people really complain about. But if he’s got a pool of, say, energy that he can tap into 4 times but in any combination he wants, that’s an abstraction people are less likely to mind because we can rationalize being able to push one’s self a limited amount of time before we‘re simply out of gas and have no more to push.
But hey, historically, I know you’re not going to acknowledge the difference between these two arguments...