alt Hacker NewsI can't think of any breakthrough successes Musk has had within the last 5 years, unless you count helping the current president get elected. If the promising but still incomplete Starship was on the same pace as the exceptionally successful Falcon 9, it would have already delivered cargo to orbit by now. His rates appear to be slipping.
https://en.wikipedia.org/wiki/SpaceX_Crew-9
It's not a breakthrough, because it could have been done with the Soyutz (except the part of reusing the launcher), but it's enough for "He promises 10, gives the world 4, but everybody else has 1, and he's hated for it."