I'm not sure I need any supernatural or anthropomorphic ideological bias to examine the evidence of what is currently being produced by LLMs or any other kind of AI and say that it has distinct characteristics.
I'm not making an argument about validity. I'm not saying LLM-created content is wrong and invalid. I'm just saying that it is obviously produced in a different way than humans produce content. It resembles human-created content because it was designed, by human intelligence, to resemble human-created content! And that we achieved even this level of resemblance is pretty impressive.