satellites were considered economically impossible for quite a while.
Satellites were economically impossible for quite a while. When "satellite" consisted of Echostar, it was impossible for there to be enough ground stations to deliver a service like Dishnet.
It got better.
That doesn't mean that the economics or physical constraints on using drones to deliver stuff are going to "get better" to the point that it makes sense to use such a system. There are things where technology can be perfect and it still doesn't make sense to deploy. Like high speed raid outside a high population density area.