Damn, this kinda kills it for me. I hate this in open world games, totally trivializes everything.
I don't understand this comment. I imagine you've played soulslikes that have healing items, right? Do you never upgrade them or something?
So this game has various lvls of enemies: Trash, Elites, Mini Bosses, Story Bosses, Real Bosses.
Everything past Trash will wtf own you if you're not careful and/or properly geared. You can "out gear" most stuff, except maybe the late game stuff.
Healing in boss fights will just let you learn their moves, because they will kill you eventually or you overpower them. Pretty much like in every other game.
There are revive pills that you can use, which are 30%/100%hp upon revive. Those could be seen as cheating, but they are in limited supply unless you want to craft them yourself by taking the time gather materials. Your choice.
Anyway, if the ability to bring in 500 heals to a fight where you'll rarely be able to use more than 10 bothers you, welp, skip it.