Now please all aboard the SpaceX rocket everybody! A 6 barrel revolver with a single bullet is added for a fun game of Russian roulette. Just to out your mind at ease, the gun is not the biggest threat to your life.
Tesla engineers are limited in their pursuit of whatever weird shit Elon wants by pretty lose car safety standards. SpaceX has to comply with two governments, a dozen other companies, and hundreds of insurance companies safety standards.