As far as I know he paid back that loan with interest.
Careful about buying into the Musk narrative. It might be true, but he’s a megalomaniac oligarch—he controls his press an media carefully and punishes all who step the slightest bit out of line.
I suspect many many conservatives secretly want Tesla, Space-X and Elon Musk to fail just because he builds electric cars. And gets subsidies. And is a Greenie.
The guy is a visionary. He thinks big and build big. I’m not on board with the Green stuff, but if we wants to build solar powered stations to power electric cars, and thinks he can make it work, more power to him.