> what about the emergency services not being able to reach their destinations?

Did they have documented problems?

This is akin to the Waymos honking at each other at 3AM. Annoying. Potentially dangerous in various circumstances. But ultimately just destructive in a way unlikely to repeat.

Have you seen how human drivers deal with traffic lights and emergency vehicles at the same time? Waymo made the right call to suspend service, they will probably update their playbook to suspend service during power outages in the future.

Same thing as if human drivers have crashed their cars in the middle of an intersection due to traffic lights being out, I would presume.