Musk knows nothing about rocket design and has very little to do with SpaceX, which is a big reason it is actually successful. If Musk actually TRIED to design a rocket it would go about as well as the CyberTruck because he would just ignore all advice from anyone who actually know how to design rockets.

He didn’t personally design rockets, but he founded SpaceX, funded it, set the architecture, and has been deeply involved in major technical decisions. That’s not ‘nothing,’ and it’s hard to explain SpaceX’s success without him.