I find the distinction between level 2 and level 3 to be unhelpful. How long do humans have to take over? Anything less than 20 seconds is not very feasible IMO.
Taking liability is an interesting PR move, but I don't think it matters in stop and go traffic where speeds are relatively low and damage is typically minimal if any.
With level 2 you must be CONSTANTLY paying attention. With level 3 you can NOT pay attention, and car will bing / bong you to pay attention. If you can't get your hands on the wheel in 20 seconds that's pathetic. I'd be able to get onto wheel in 5 seconds or so, but I'd like to be just chilling with my podcast until then (I'll still be looking at road, just not worrying about watching for stuff).
It's not about getting your hands on the wheel. It's about knowing whether to brake or speed up, and which direction to swerve. If the system is confused by the scenario and wants you to take over, it's presumably not as simple as maneuvering around a parked van on the shoulder - it's going to be in a complex scenario.
If you've been playing an immersive game on your Steam Deck (or a VR headset), yeah good luck good with knowing what to do when the car bing/bongs you.
If you think people shouldn't play games, what exactly does "you can NOT pay attention" mean? If the difference is solely liability - that's great but it doesn't make a difference to people in other vehicles (or to pedestrians).
Collisions at 40mph / 60km/h are no laughing matter. And as far as I understand, the Mercedes system will let you know well ahead of time if you have to take over, as that would only be required as you leave the designated area. Taking over to drive faster than the limit for drive pilot would never be a requirement.
Taking liability is an interesting PR move, but I don't think it matters in stop and go traffic where speeds are relatively low and damage is typically minimal if any.