I don't blame them for worrying about it. The policy should not be to forbid it but make sure you don't leave artifacts because I guarantee, people are going to use a bot to write their code. Hell, in six months, I doubt you will be able to get a code editor that doesn't use AI for code completion at least.
Also, AI coded programs will be copyrightable just like the old days. You think the big corps are going to both not use bot coding and give up ownership of their code? Fat chance.
Remember the Micky Mouse copyright extension? If the courts aren't sensible, we will have one of those the next day.
The old days ended very abruptly this time.