I really like this theory from Kellan Elliott McCrae: https://fiasco.social/@kellan/114092761910766291
> I think a simpler explanation is that hallucinating a non-existent library is a such an inhuman error it throws people. A human making such an error would be almost unforgivably careless.
This might explain why so many people see hallucinations in generated code as an inexcusable red flag.