>Google, said that in tests on roads in California last year, its cars went an average of nearly 5,600 miles before the driver had to take control from the computer to steer out of trouble. As of March, Uber was struggling to meet its target of 13 miles per “intervention”
As many others have pointed out, it's very difficult to take these disengagement stats as a direct comparison between the two companies' systems. Basically, there's no information about what miles driven by Uber and miles driven by Waymo are covering. Perhaps Waymo is driving its cars in less complex environments, or maybe Uber is driving them in more diverse environments (whereas Waymo is sticking to the same few roads and neighbourhoods).
I know you're under the impression you are informed. These metrics, however, are not the same. You don't know what Uber's equivalent metric is at. That doesn't mean you should compare different metrics as if they were the same.
Quite a difference.