The only possible advantage I see in drone delivery I for the driver to park at some central point and deliver the packages in the area.
I don’t know how the driver will be able to confirm, with high certainty, how he got the package to the right house.
I’d be concerned with any inaccuracies with Googlemaps or whatever and have the package dropped at the wrong house.
The central point is their warehouse. I see this as taking the “UPS sucks” out of their delivery structure. No longer will they have a company they’re paying running over packages, refusing to deliver packages, or messing up their schedule by going on strike.
Remember pilots of drones get to look through the camera, so assuming your address is visible somewhere they can easily confirm.