This was a feat in 5e, to be able to heal someone once per short rest with a medicine kit, now it's just, down, up, down, up, down, up.
I can see a comprimise since it's a video game, have heal get them up at 0 HP in a staggered state where they can only move, can't take any actions (maybe allow drinking a health potion) so they can get someplace safe (Like heading straight for a temple if it's anything like BG1 & 2). If a fight breaks out while moving with someone in a staggered state, they are capable of moving to a safe distance away from the fight and let everyone else do the fighting.
