Pathfinder 2e healing actually heals a substantial amount of hp, so using the actions to do so feels valuable. Additionally, although it still has the same weeble-wobble effect as dnd 5e, it has a condition called Wounded which makes it more dangerous to go down to 0 hp successively, incentivizing PCs to try and stay above 0. The encounter balance in pf2e is also just miles better than Dnd5e.
Fabula Ultima is modeled to feel like a JRPG (and does so wonderfully). Because healing is often a staple in those games, that feeling comes through well. Dropping to 0 hp removes you from the combat entirely, so it's a very bad thing to happen. The numbers are also smaller and tighter. Healing also often targets the whole party.
I can't find it, but I remember a political cartoon during the first Trump admin where the cartoonist is drawing and their partner comes in to say something to the effect of "stop, that cartoon you're drawing just happened."
I mean, the problem mentioned in the article would be an easy fix, and the original discoverer claimed some pretty massive performance gain.