The problem of AI generated stuff (we see the problem of manifests, but I'm a software engineer and with computer programs it's exactly the same thing) is that they immediately look non-human, and our brain trained itself to detect, and thus get irritated by, AI generated content.
It looks fake, it hurts to see, it seems fine at first glance fine but it's not, everyone seems identical because the AI is not, despite of the name, creative, it just a hyper complex copy/paste machine, and obviously the result just looks copy/paste as well.