Even though it might sound absurd, Tesla actually applied a "cloud thermostat" approach to car engineering, by which I mean that they did not refrain from using

Even though it might sound absurd, Tesla actually applied a "cloud thermostat" approach to car engineering, by which I mean that they did not refrain from using basically consumer-grade equipment for some critical functions of their cars. This is especially evident when looking at comparable cases of part failure, like the infamous touchscreen failures: https://www.thedrive.com/tech/27989/teslas-screen-saga-shows-why-automotive-grade-matters https://www.thedrive.com/tech/27989/teslas-screen-saga-shows... You are absolutely right in that this failure should not have happened, because they should use some other medium to store their logs that is not getting cramped by increasingly bigger firmware versions and that is appropriately sized and engineered to withstand at least a century or two of heavy usage. But since cloud thermostat and media player box vendors also get away with just stuffing some embedded Linux distro on a single chip of the cheapest Flash they can find on the spot market, Tesla probably didn't put much thought into why they shouldn't just do the same. After all, this system is just a media player box mounted in a car, right? (Except that for some totally absurd reason, the car ceases to function entirely if its media system breaks, which is the next big WTF in this story...)