Also I think articles like this often forget that while it would be great to not need a car for the morning commute, people in suburbia still need to do many other things like shopping and fetching children etc.
Many of those tasks are just easier or more preferred to be done in personal transport. Sometimes you need to leave some shopping in the car while you go in to sit with the kids at an after school thing, before heading past a friends house to drop off their kids then finally heading home. A self driving fleet could probably still achieve that in multiple trips, but how many people want to deal with continuously pre-planning and concerting a half dozen small trips a day?
I strongly dislike suburbia and car culture does grind my gears in various ways, but I can't help but feel the car-in-an-app is solving the very specific problem of short once off trips, and solving that doesn't even come close to solving the nations transport issues.