I think Google Maps is more relevant to self driving. Google Maps has become, in my opinion, the best way to navigate, far superior to any other GPS-enabled option I know of. But the better it gets, the more obvious it is that you can't rely on it totally. If self-driving was feasible tomorrow or in the next decade, navigation would be much better. And if anyone could do it, Google would.

Think of the trope about idiots driving into lakes or off the road or whatever because they were following navigation. And now think about unconditionally trusting Google Maps or anything else, for say, a year. You know it's not up to that standard.

I think you can debate whether it needs to be an order of magnitude better, or multiple orders of magnitude better.