That is interesting, last year my car was at the SC and I got the notification on my phone that an update was available. I rang them and said can you guys just do it when it is convenient for you rather than me start it from my phone. They told me they were not allowed to do software updates to the car because customers had to acknowledge the new features themselves.They have selectively forced some cars to update from V8 to V9, though
Now I get that Tesla and consistent are two words you can't use in the same sentence but it makes sense they cannot force an update to the car when the whole GUI changes so drastically between major software revisions.