I second DrScump's point, but it is also a fact that the car did recognize that the lane was a no-go area, at least in its immediate vicinity. From the video, t

I second DrScump's point, but it is also a fact that the car did recognize that the lane was a no-go area, at least in its immediate vicinity. From the video, the fragility revealed here seems to be that the system driving the car is attemptng to follow the route from the planning system very explcitly, down to which lane to use, and there seems to have been no effective way to get that plan revised in the face of the problem. In general, I would imagine that following a route plan to the lane level of detail is important; I can see that it would be when approaching a turn, for example. Also, when the car first encounters the cones, it only recognizes that the lane is blocked for a short distance: after that, each cone encountered seems to be a separate problem. Humans easily generalize a line of cones to a blocked lane and modify their plans accordingly, but we do not have AGI yet.