Sadly we see such things more and more. For example a 3 year old TV looses apps such as Netflix or Skype which where specifically advertised on the box.
There ought to be an option to 'stay' at any 'version' you want. Only permit bug fixes. You know, LTS....
Doing it with a car is a whole different level though. I’m pretty sure it’d still fall under the same laws but returning cars is very tricky even when you have a legal reason.
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.