An issue with this, from a greedy consumer perspective, is that it allows the app more time to get you to your destination. If I do an uber pool express, the time saved from walking doesn't credit to my day; that time is used to pick up more and further passengers, and introduces further room for driver error.

With old-pool, the driver did have to make more loops to get to me, which lowered the available time to get to my destination (as per the estimated arrival time provided by the app). Due to the tighter timeline, I typically arrived at my destination quicker and with fewer pickups.