..." Too the same extent" is doing A LOT of heavy lifting there. It was harder to nova because classes outside the wizard (and lesser extent cleric) couldn't their was no action surge, divine smites, no bardic inspiration, no rage. The closest thing to a nova was dropping your highest level spell. Nova became a thing because magic began providing a strong mechanical benefit for buffing and character's gained x/day resources that were part of their core identity.
I don't even think healing was as big an issue because we did Baldur's Gate healing (two days to be back to full and have your complete spells) and nova wasn't an issue. The only nova characters were mages and psionicists.
Honestly, and it pains me to say this, you are always going to have X minute workdays for as long as major class features are Y per day. The more resources, the quicker to nova and rest.