in the long term, elon has a very good track record for attempting to follow through with his stated intentions. sometimes things change, or he changes his mind, which is his right as much as it is anyone's. that doesn't mean "false claim".
"The thing he had success with were things that were known to be good ideas, reusable rockets, electric cars and space based LEO communications."
This is so outrageously not what history reflects. Elon started an electric car company when the entire industry very strongly believed both, individually (car and electric cars), are absolutely stupid, terrible ideas. And Elon did both at the same time anyway.
If you asked Hacker News 15 years ago if starting a rocket company was a "good idea" and a "good way to make a trillion dollars", you'd be hazed ruthlessly. Everyone in the establishment aerospace community said it was impossible or absolutely divorced from reality.
Elon, more than anyone alive, has been way ahead of the curve on good ideas when everyone else thinks they're idiotic. online payment processing, electric cars, reusable rockets