The even worse part here is that not only could it impact an image of a beautiful sunset, which would fail the human check, it could impact a low quality versio

The even worse part here is that not only could it impact an image of a beautiful sunset, which would fail the human check, it could impact a low quality version of legal porn, which could easily pass the human check and get passed on to law enforcement. A sufficiently advanced catfishing attack could probably take advantage of this to get someone raided and have all their electronics confiscated. Just send someone a zip of photos and let them extract it...