Cars have had computers for decades now. Before the age of OTA updates, whenever one of those computers had a problem, a recall was issued and you needed to physically take the car to a dealer, probably pay some kind of service fee, and have them plug something into a hidden slot somewhere to flash an update. Other times they'd just swap out the physical computer (call it a "part") and throw out the buggy one.
I don't like the modern 'car OS as a service' system where every month or so defects need to be fixed for some reason, but OTA is a hell of a lot better than the system before software updates became available to consumers.