The problem is that for the vast majority of use, LLM output is not revised or edited, and very many times I'm convinced the output wasn't even fully read.
Joke is, it was GPT 4o. I didn't phrase it to be like an LLM, I asked GPT to defend itself, and used it's text un-edited. Except adding the 'but but but"
There is a lot out there that people are no longer able to determine if it is an LLM. They are getting better. That they are no longer obvious is the scary part.