When I worked at Waymo, we had a ratio of about 10 cars to 1 remote human. I dunno if Cruise is being over-protective, if their tech is just that bad that they need more people than cars, or if the number is just incorrect.

Either way, it hardly matters. It’s not like these things are commercially available for a long time yet, anyway. In the testing stages - which Cruise 100% is still in - you definitely want a sturdy team of humans capable of intervening for safety reasons.