MB's system accomplishes the levels of quality defined in the SAE standard. Tesla is taking a different strategy by focusing on quantity of features, although many of them fail to meet the reliability standards of the higher SAE specs.

Tesla is stuck at level 2 because the level of reliability required at level 3 would mean they'd have to remove features to meet it.

And turn it off completely when driving on half the roads in the US.

To be fair, Tesla calls theirs "FSD" for essentially the same reason.

Tesla generates plenty of headlines every time one decapitates a driver or crashes full speed into large pretty much visible from space police/fire truck blinking all of its lights.