If you want to be sceptical about SpaceX, why focus on the one thing they've proven they are good at? If Starship fails I have a hunch it will be for reasons no

If you want to be sceptical about SpaceX, why focus on the one thing they've proven they are good at? If Starship fails I have a hunch it will be for reasons not directly related to engineering, like unstable billionaire tantrums or demand not materializing in time, or simply politics.