Loon, low-orbit satellites, and similar technology are like going from the frying pan to the fire.

All technologies of this sort are challenged by extreme variations in demand in different geospatial areas -- for instance you have to provide coverage for uninhabited ocean areas, etc.

Inevitably around big cities you will find concentrations of people who want to buy reliability/diversity at any cost, and if you don't keep these people out, they will affect the system for 100s of miles around them.