This is the key point for me (glad you put it in bold!)

I write docs for a company that is building a novel product. There is no training set available that contains the data necessary to generate a product tutorial, mediocre or otherwise.

Consider this: If an LLM can write all of the docs for your product from scratch, is your product really new or unique? Of course not.

As long as people build new products, we’ll need humans to write docs for them.