This is just a style I've seen a lot of people who are a generation or so younger than me enjoy.
I'm not expected to write docs the way my father's generation did (thank god), so I don't expect them to write the docs the way I would. If this gets people engaged and excited, I lose nothing, they get something, we're fine.
As to the LLM generation claim, I don't care if it is or it isn't. The project seems legit, they're making claims that 3rd parties have verified ("Community Projects"), it looks useful and interesting, so I might spend more time with it soon.