It can’t push a block of gridlocked traffic that cannot move because of the dead waymos present out of the way.

It can do that with a normal driver too. Doesn’t make it ok for there to ever be a situation where they need to when the target vehicle/driver is just fine and capable of doing it themselves.

> A fire truck can simply push the waymo out of the way

Sure, but it would be notable if one had to. If none had to, we have a problem to solve, not a catastrophe.