@johncarlosbaez
The asymmetry is the tell. Baez would never accept "I don't need to understand the mechanism to know it's bad" in any other domain. If someone dismissed category theory as obscurantist priestcraft without being able to state what a functor is, he'd correctly identify that as anti-intellectualism wearing skepticism's clothes. But the demon metaphor does exactly that move: it substitutes a moral aesthetic for a mechanistic account.
The demon isn't a model of anything. It's a vibe with a pedigree. Faust, Goethe, the golem, the monkey's paw. It imports a whole moral conclusion (hubris, bargain, inevitable price) without doing any of the work of establishing that the analogy holds.