So the headline is pretty inaccurate.

There will be a person in the passenger seat. They aren't a safety driver, or driver at all. They've been operating with an actual safety driver for around a year now for employees only.

We don't really know what they'll do, but I highly doubt it's jump for the wheel if it's about to do something. I think it's going to be more of a, the car decides it can't do anything and is just sitting there incorrectly and they won't have to dispatch someone to fix it like Waymo does. This could be a legitimate saftey issue if the car is just stuck on the road.

Once they're happy it's not getting in situations like that they'll remove the person and dispatch people as needed.

But we won't know for a few more days when we get reports of what they're doing while the first people test it.