The healing amount though is just like a surge. I use dice because it's more D&D like but that is the idea. The difference is you get unlimited surges but they can only be activated by magic. But for those of you liking non-magical healing, you could have one rest do your hit dice in healing. You could have a long rest do half your level rounded up in HD of healing.
Yeah, every time I hear this, I think of all the 5e experience I've had.
And I laugh. Because this amount of "non-magic healing" would have guaranteed
every single group I've been in would have suffered not just one TPK, but
multiple.
It's always hilarious to me how much people misjudge the value of hit dice in 5.x. They absolutely are not sufficient healing on their own.
This whole thing was a solved problem in 4e. Characters could heal somewhere around 200%* of their total HP per day....
and that was about it. Yes, the well was (slightly) more accessible than it's been in other editions (people somehow always forget that a character cannot access more than 1 healing surge per combat on their own power normally...and it eats their whole action to do so!), but once it's dry,
it's dry.
Healing surges, as they actually existed in 4e, were a very effective attritional resource. Sure, when you start the day, you're riding high and don't have a care in the world.
After your third combat where you've been beat all to hell, and suddenly realizing you have
just one surge left...well gosh would you look at that, you're suddenly incredibly cautious and treat every blow as a Very Scary Issue!
The size of the pool of healing is much less important than how easy it is to refill. And that's the problem with spellcaster healing. You siphon off as many spells as needed for healing. If you need more, you need more. If you don't, awesome, funnel that resource into blasting. Making healing have an almost entirely hard cap per day? That'll put the fear of God into players
right quick once they realize they're staring down the barrel of oblivion and
literally don't have any more resources to draw upon.
*Technically, a Paladin that goes absolutely bugnuts for healing surges could theoretically get something like 550% before Epic tier, but this would be exceedingly wasteful in most cases.