When Y'shtola was sliced by Zenos, weren't the healers present doing more of an emergency first aid and she was taken to real doctors afterwards? I'd imagine lore-wise it would be longer process than just casting cure and sending the patient away. Like in combat they'd be able to keep you going long enough for you to not just fall over, but you'd need some longer treatment and rest after the fact.

...So it's just magic morphine and in reality we were heavily injured in the ARR opening cart, and now we're just seeing dreams and hallucinating while overdosing on cures.