I strongly agree that written text should be from humans to humans. Yet I still write all of my texts with LLMs. And I don’t find that contradictory. What distinguishes “AI slop” from “good writing” is whether a human has put thoughts behind it. And you cannot outsource thinking.
Writing is thinking. If you're outsourcing your writing to an LLM, you are shortchanging yourself by skipping over much of the refinement of ideas that the process of writing provides.
I wish the author had clarified how he uses LLMs for writing. It's perfectly fine to have an LLM proofread and fix your grammatical errors--that's a mechanical task. But I think it's gross when it starts putting words and content on the page.