Is it possible that the kind of stainless steel selected was specifically chosen to be hard so that Musk could say it’s “literally bullet proof”, and this rusti

Is it possible that the kind of stainless steel selected was specifically chosen to be hard so that Musk could say it’s “literally bullet proof”, and this rusting is a consequence of that? If so, you know there are mechanical and materials engineers who work at Tesla who were internally screaming during the WHOLE development process. Can you imagine the stress of being tasked with something so stupid?