There is, as I understand it, room for Tesla to comply with UNECE revisions that would augment AP as we know it. As has been mentioned before Mercedes have L3 called "Drive Pilot" under limited conditions in Germany, and will presumably bring this out in the UK in due course. Ford have "BlueCruise" which is approved over here for hands-free driving. Hyundai and Kia (and possibly others) have fully remote summoning and self-parking with dead man switch remotes.
All of that is to say that Tesla could do parallel development of self-drive software in Europe to fall within UNECE as it is and as it relaxes, but choose not to. Their attitude is that FSD Beta is their singular focus and it will be released essentially "as is" in other markets as and when they open up to the extent that it is permissable, or never - if they don't. In the case of Europe, that is most likely several years away. This US-centric attitude permeates everything - e.g. matrix lights that do sod all in Europe despite being legal here for many years.
Tesla's focus would be fine if they weren't selling EAP/FSD in Europe, at full price, knowing full well that self-driving even to the degree experienced by US owners using FSD Beta is either never likely to happen in the practical lifetime of the car. They're selling a dream to customers with less info than they have when they know it won't be a reality except for the very few owners who are prepared to run their cars into the ground. With finance being the predominant means of acquisition, I'd venture this is not typical.
This is all aside from the sensors they've removed and are unable to reach parity with much less improve upon with cameras & AI.