5G with drones?

Southgate News has piece about using drones that stay up for 9 days to act as 5G base stations. I guess this could be less expensive than 5G microwave base stations every few hundred metres. It could also offer 5G in rural areas, which otherwise could lose out.

See http://www.southgatearc.org/news/2020/november/using-drones-to-beam-signals-from-the-stratosphere.htm#.X6UPuLuTK00