Waymo and Cruise have failed to scale and it doesn't look like they ever will. It's difficult to find a single article with the full context, but around 2017 as Waymo started giving limited rides to the public, everyone though the problem had been solved. There was a flood of startups hoping to be a strong second mover in the space, and then basically nothing. Expectations have shifted over time, but 7 years later and there's been only small incremental progress.
> In any case, the Mercedes system is what's known as a conditionally autonomous system.
Yes, but it's significant progress if it reaches consumer hands. This sounds like the typical Waymo marketing of "you can't get to Level 4 through Level 3". I bought into this at one point, but Waymo and Cruise have demonstrated that going straight to Level 4 with $100k+ (probably much more than that) of sensors and corresponding maintenance doesn't scale.