As a general rule, it is usually safe to assume that any arbitrarily stupid thing that Carface says, he actually said. The reality is generally sillier than anything that anyone could make up.
It's high time that people stop giving any credit to the likes of Elon Musk. He sounds like an edgy prepubescent boy shitposting on 4chan, and placing any of Elon Musk's quotes below the online profile picture of one of those kids would draw exactly the reaction it deserves.
The Guardian article cites an article that cites an article that never contains the word "coup".