Yeah, it’s just back exactly to the problem the article points out - refined bullshit is still bullshit. You still need to teach your LLM how to talk, so it still needs that cast bullshit input into its “base” before you feed it the “grounding” or whatever… And since it doesn’t actually understand any of that grounding it’s just yet more bullshit.
Magic medicine means magic ailments. Just like the introduction of antibiotics produced bacteria like MRSA, the use of magic to cure wounds could produce MRSA. That is, magic resistant staphylococcus aureus, as opposed to methicillin.
Curses and other such primarily magical ailments could also be much more difficult to deal with than simple infections/wounds.