The way this is being reported gives the impression that there are workers in the philippines remotely driving these cars (if they are, maybe google found a good use case for all that Stadia tech).
What it actually is, if the car gets stuck someone can manually override - which, I imagine is normal? If the car gets stuck you can call someone and they can do "something", which can probably nudge the car into action. I doubt the latency is that good where someone can remotely drive the car.
What I found interesting about this is that on several occasions I've seen Waymos get confused and block intersections (and once Muni tracks). Each time they've sat there for at least 10-15 mins until a police officer showed up and tapped on the window. Then it was another 10-15 mins before the vehicle started to move again. What are these agents doing?