Because the areas are too spread out to be profitable.
Many of these areas people either have satellite Tv or another internet solution such as viasat or a cellular hot spot.
So they spend thousands to wire some of these homes, and all they are going to get out of it is a $45 internet connection. That doesn’t even guarantee every home.
Granted they will win some over from Directv or Dish, but a majority will want to keep what they have and want internet only.
If we didn’t have satellite Tv, a lot of these under served areas would have been wired years ago.
The other issue was that the government about 8 or 9 years ago had the recovery act that provided millions of dollars to ISP’s to provide service to under served areas.
All this did was allow Hughesnet rapidly expand their customer base at the governments expense.
Back in the day I could do 40 hughesnet activations per month.
After the recovery act, and everyone getting hit with letters and direct mail we are lucky to get 1-2 activations per month for satellite internet