Sorry but "they could slip in a chip that enabled a wavelength their satellites can access" is ridiculous. Sending a real-time video stream to a satellite would require a large and very power hungry transmitter on the drone. It'd be super obvious.
People won't do that at scale.
It'd take only one person to recognize a sudden large traffic spike caused by the app and post about it online to ruin such a setup. As soon as it's confirmed by a few more people, it'd immediately be a major news story. And it's not like it's particularly hard to spot unusual traffic; especially on a phone where the OS monitors per-app data usage both on mobile and WiFi.