no one said it was - I gave you a method to check what kills your std bulb filaments.....
the reason some die faster is materials and build quality - they know how to make a filament bulb that lasts - they choose not do for economic reasons...
there's a story for fact check and google to lie never happened - re the fall of the berlin wall and records the stasi had noting the evil west and philips et al colluding in the 1930s building a cartel to ensure bulbs die....
the point I made was a feature BMW and Ford use - causes additional stress on the bulbs - Mercedes manage much the same error warnings but with nicer electronics that doesn't need the voltage spike and allows LEDs to cope far better without a fight