Yes, nobody writes bug free code and that's why having a car that can't update software OTA is a good thing. Got it. I do enjoy knowing that if a bug crops up I have to schedule an appointment at the dealership and take a day off work to drop it off to be upgraded instead of waking up to a bugfix having been already deployed.
This is why they don't upgrade everyone at once. People in the early-access program get the updates earlier and do so with the understanding that there may be bugs.