KidSnide
Adventurer
It does undercut it. It doesn't necessarily remove it, but it does undercut it.
The idea is just to divorce class archetypes from having to have a particular recharge rate. Other mechanics can still distinguish classes. Wizards still use spellbooks and memorize magic, they just have a choice of how much power to invest in a spell (maybe even a choice they make when they prepare it!). Fighters still use flexible, dynamic maneuvers, they just get a choice of how much "oomph" to put into them in the moment.
Also, classes could be given different recharge systems without necessarily using the same mechanics. For example, wizards could be given specific spells that, when prepared, operate as at-will or per-encounter abilities, but fighters could have an optional rule where they get fewer combat expertise dice every round, but have access to a different pool of "push yourself harder" dice that recharges after a short or long rest.
-KS