Normally I’m a defender of Musk. But there is no getting around the fact that he looks petty in this case. It will cost him, and not just financially.
Something I learned a long, long time ago: When you’ve got an idea how to do something, and your idea is not used, and the other guy’s idea is used, and it works, as well as this rescue worked, you’ll only look stupid claiming they should have done it your way.