The fact that none of the other space startups prior to SpaceX, which had access to more resources, succeeded? Same goes with Tesla. You have to really stretch believability to argue that the one factor in common between two companies which broke into extremely hard to break into industries and ushered in paradigm shifts, happened to do so for no reason related to that common factor, let alone arguing that they did so in-spite of that common factor.
We also have pretty detailed books on the history of SpaceX, written from employee interviews, which also indicate that Musk is fairly hands on. There's also this tweet from the designer of the Merlin rocket engine that is usually thrown around when these kinds of claims are made: https://old.reddit.com/r/SpaceXMasterrace/comments/15am9pl/t...
We also have pretty detailed books on the history of SpaceX, written from employee interviews, which also indicate that Musk is fairly hands on. There's also this tweet from the designer of the Merlin rocket engine that is usually thrown around when these kinds of claims are made: https://old.reddit.com/r/SpaceXMasterrace/comments/15am9pl/t...