Jefe Bergenstein
Legend
Sure, it's 5E's mantra even. "You change the rules because we can't be bothered to write decent ones!"Not per day, per long rest.
And I run 5-minute short rests, usually handwaved, and limited to 2 per Long rest.
That's the meta at my table, expect 6 or so encounters per long rest (sometimes less, occasionally as few as 1, or rarely as many as a dozen).
That's a choice I make as DM.
When you choose (as DM) to allow a Long Rest (and short rest) recharge of your parties' resources goes a long way to challenge, and class balance.
I get that you prefer not to do anything about this, and just let Nova strikes happen, leading to massive class disparity (with casters dominating as a result; literally something you were just complaining about) but that's a consequence of the choices you're making as a DM and not on any other reason.
Nothing inherently 'wrong' with your choice, it's just that it's the thing that's leading to the problem (caster imbalance) that you seem to be really pissed off about.
It's within your power to change.
Moving long rests to 1 per adventure and short rests to 2 per adventure does help. It's also not the default, and a variant or a variant buried in the DMG. That high level D&D requires this to barely function is a problem for writing high level adventures for a general audience.