That doesn't mean there's one observer per drone tho. Say for pizza drivers, for one day maybe you have 2 drivers per shift, maybe have 2 shift. I highly doubt you will hire 1 driver per drone.

I'm also sure the observers are not people without degrees, they are probably observers from the company that made the drones. Because if some regular driver observers the drones, what good would that do if it broke or something goes wrong, the observer basically would need to be some type of repairman.

In the end these companies are trying to cut down on human workers to increase profits.