People get things wrong in a different, more observable/predictable way. Sure, we are easily tricked dummies and we can't know if a human is right or wrong, but our human-trust heuristics are highly developed. Our AI-trust heuristics don't exist.

I mean I had people serve me expired food and chicken that was half raw. The latter I could observe, the former I couldn't so easily. Both were things that could have made me sick.