It only works in L3 mode on 9000 km of roadway. Given that Germany has about 13000 km of motorways, that's most of that already. The Tesla system works in L3 mode on exactly 0 km of roadway.
That's actually pretty disingenuous, and you know it, or you actually are just glossing over the important details. The "technicality" of L3 is being embraced, but ONLY a subset of the L3 feature set. The limitations on it in this vehicle are so extreme that a pretty good case could be made that this is far worse "false advertising" than Musk's comments on FSD.
Go watch the actual videos of the media driving in this thing. There is absolutely nothing earth-shattering about it. It's like Ford's Bluecruse at best.
People complain about FSDb and some of the errors it has routinely, and they are legit gripes, but what MB has shown is just not impressive by comparison. At least FSDb is trying to do stuff like unprotected left turns, stopping and starting at stop lights, lane changes, etc. The MB solution doesn't even ATTEMPT any of this. The SAE standards definitions are the problem, and this video reviews the MB solution, in comparison to Tesla's, and gives them both crap for what they fail on:
Both are less than perfect solutions, but the MB solution is so limited as to not be useful under most circumstances, except basically traffic jams. Needs a mapped road, etc. etc. etc.
TL;DR - the MB solution is at best equivalent to what Tesla's solution was actually doing back in 2016 with Autopilot 1.0 Hardware, but with far fewer roads, and no ability to try to drive on a road that hasn't been mapped.
MB - you can take your eyes off the road and say watch a video, but it can only effectively be used on highways UNDER 40MPH (no rain, no fog either).
TESLA - you can't take your eyes off the road, technically, but the car will try MUCH MORE difficult maneuvers (on/off ramps, stop lights and signs, left and right turns, lane changes, drives in fog, rain).