My personal opinion is that it fails because SpaceX, like a lot of space startups, embrace a silicon valley coding mindset of ‘move fast and break things’, which results in them spending much more of their time and effort on testing than on design. Make a change, test, make a subsequent change, test. It gets them to a working prototype more quickly than legacy space/ defense companies. However, there’s no emphasis on modeling or design, which is problematic for solving complex problems that haven’t been solved for 50 years already.

You mean like Starship?