> It’s a back up system in case The vehicle gets stuck
People seems to be thinking emergency control, but that would make no sense. Imagine being dropped into a completely unknown setting, milliseconds away from a crash and being expected to take over the wheel. That's pretty obviously not what this is about, it can't be much beyond a car that hasn't moved in a few minutes because it's stuck.
The other robot taxi systems with cars actually on the road are SAE level 4 systems. Unless Tesla's will also be level 4 or 5 they are not comparable. Their current consumer FSD systems are level 2.
It’s a back up system in case The vehicle gets stuck. Simple as that.