Sure, some small % of the populations will probably do that. Some small % of the population will drive drunk.
Neither are acceptable ways to handle the vast majority of situations one encounters.
The situation in the article. is roughly the same as being lost (or going somewhere in a way GPS won't work) and taking directions over the phone. If the line goes dead nobody (who's behavior we want self driving vehicles to emulate) just stops in the middle of the road.
Perhaps dense fog, or whiteout blizzard conditions? I’m making the assumption that the server parses the data from the truck to determine what it is seeing.