While I agree that "good" art "sits just outside of what we expect", I must play devil's advocate here and say that the uncanny valley of CGI/AI/... also "sits just outside of what we expect".

So there must be more to it.

Eh, turning that uncanny valley to 11 can be an artform in itself: https://www.youtube.com/watch?v=TGIvO4eh190

By human? I don't doubt that.