Not only did he steal it from Heinlein, the part that makes me irrationally angry is that he claimed the term came from The Hitchhiker's Guide to the Galaxy.
He is dumb, but its a bit deeper than that. They fetishize free speech and lack of censorship, but in practice they don't actually want free speech and they love censorship.
So when they create an LLM that's predisposed with that fetishization, it comes out in the form of calling nazis like Elon for being nazis.
They're trying to have their cake and eat it too, but it's blowing up in their face.