Uhh but a narrow Level 3 system will also in general do broad Level 2. You think these Mercedes can't do adaptive cruise control at 60mph wherever you want to activate it?
I would take a car with reliable, narrow L3 and reliable broad L2 (especially when the L3 is reliable in the most frustrating driving conditions to encounter) over broad pseudo-L3 any day.
Waymos are incredible, but Teslas are a much worse tradeoff than what MB is proposing here in my opinion.