Seriously. Ever used internet on an airplane? You're using one of those companies geostationary satellites. The article is ridiculous.
Not necessarily. GoGo Inflight uses ground links for domestic US flights.
And they're being dropped in favor of geosynchronous providers.
I don't know much about their market. A friend of mine works there though, and he said they are growing.
They're not. They lost American, and they're losing market share quickly.
You're right. I don't really know much about the field at all. I was basing my opinions off the article. I'm still surprised they're touting geostationary satellites as superior though. The speed of light is constant. SpaceX's plan while very expensive, at least theoretically could provide a complete internet experience. Same thing with Google's balloons. Astranis at best can only serve static sites.