Verification has always been hard and always ignored, in software more than other industries. This is not specific to AI generated code.

I currently work in a software field that has a large numerical component and verifying that the system is implemented correctly and stable takes much longer than actually implementing it. It should have been like that when I used to work in a more software-y role, but people were much more cavalier then and it bit that company in the butt often. This isn't new, but it is being amplified.