A small misunderstanding - "legal reasons" are that it is the person in the driver's seat who is legally liable for damage done while the car was driving itself, not Tesla.
The important thing here is that for over half-a-decade, Tesla has been lying to its customers about its capabilities.
When in actuality, Tesla will reliably crash into pedestrians and stationary firetrucks. To the point where people at other companies are confident to make live-demos of this at electronic shows.
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Calling it "autopilot" or "fsd" isn't the problem. The problem is that Tesla actively lies about its capabilities to the public and its customers. It doesn't matter "how" they lie or exactly what weasel words they use. The issue is that they're liars.
We can tell them to change their name or change their marketing strategy. But as long as they're liars, they'll just find a new set of weasel words to continue their lies.
For reference, this same marketing video is still up on Tesla's site[1].
[1] https://www.tesla.com/videos/autopilot-self-driving-hardware...