I mean, they're Google -- I'm guessing they're pulling out their "pointcloud of the entire world" for this one. The first point is a great one, tho; rideshare companies exist by offloading as much cost as possible onto their employees, and even then barely make it work.

Plus, at least some of the Waymos are super-fancy Jaguars -- tho it looks like roughly 20K Jaguars to 65K Chrysler minivans, according to Wikipedia. Still, they're all brand new vehicles; even with bulk discount, that can't be cheap.