As one example, satellites won't help in situations such as marathons. The problem with marathons is the number of devices that are trying to access a limited spectrum. A satellite station will have bandwidth limitations as well, as its most likely use is through WiFi.
The example in the QRPer article above indicates a different limitation. He did have a satellite dish for internet access, but there was no way to distribute that signal over multiple mile radius, which is what he did with both FM simplex and at some point with 2 meter repeaters. For such communication to work, all parties would need a dish.
He invited neighbors to come over to use his internet service so they could make wifi calls to family.
His daughters and wife staffed the FM channels, keeping the local net alive.