>>96319036
"Healers" exist so you don't have to give all characters troll regeneration for downtime purposes. Otherwise, you're waiting weeks or months between a day of fighting to recover your booboos. Also helps explain why your entire adventurer career isn't ended from the first real wound you took. Enjoy being gimped for life because you thought having physicians in your setting was gay. It also allows you to add enemies that corrode or subvert the body in more frightening ways. You'd be pretty pissed if your DM told you a single fight with ghouls now has your arms rotting off slowly unless the setting had some way to actually deal with this.
They are not supposed to be for healing midcombat. If you can't get through combats without someone healing, your team is bad and your builds are bad. Or your DM is pushing you too hard. This is video game brainrot at work. Video games only do it because the CPU DM is actually less free to handle dynamic situations than people are. Thus mechanics have to be more abstracted instead of less.