Let's be honest with ourselves though, and admit once and for all that upgrades are not bugfixes but bugswaps.
Hard disagree on that one. In 2 years of driving this car the updates have been a clear net positive. Even this update with the botched UI included a new automatic seat heating feature that's a benefit. I definitely have criticisms of their UX, particularly around a few features that are used while driving, but they still have by far the best infotainment in the industry and keep improving it.
Tesla software updates have in general been good with some setbacks. So the model still seems definitely better than what the industry usually does. A rollback option would be nice as this update shows. It would also give them some extra data on what people actually think of the updates.