In the worst case scenario, the code belongs to the Public Domain. That's why we shouldn't just accept whatever is copy/pasted but heavily modify it after review.I wouldn't say that would be the case. It depends on the perspective of the user.
But I think there is also a legitimate liability concern due to licensing. Projects heavily incorporating "AI" output into their programs may be sued into oblivion at some point. And then they are simply not an option. I would assume, given the history of both NetBSD and FreeBSD, this outcome would be one to avoid. But I can't speculate on the matter. Just have to wait for the core team to release their policy.
LLM's are just another tool like compilers.