The genie is out of the bottle. Even if every "legitimate" company with a private model agrees to this, there's no way to enforce it on open, public models.
Related, it'd be nice if cameras had signatures to stamp proof of authenticity for the photos they produce.
While we're building the wishlist, it'd also be nice to have a history of transforms to sensor & artist-made digital pixels. This would have to be supported in DCC.
With these 2 things (proof of authenticity and git-like edit history), we could at least say with some confidence when news media _is not_ AI generated.