Assuming the average ride is over 2 mi, this is more than Waymo's cumulative 10M miles driven.
Apples to oranges. Waymo's 10M miles are their autonomous miles, not their total mileage. Apollo's miles are almost entirely with safety drivers until very recently.
They are simply saying they are expanding their area in Phoenix AZ, which is already the largest autonomous ride-hail territory in the US...