Actually, it IS carried by every major provider. Comcast, TW, Cablevision, Cox, U-verse, FIOS, and Dish.
I did not say they carried it in all the areas they served. Only that they carried it.
It would be pretty stupid for Billy Bob's Cable and Bait of Fartridge Kentucky to carry a channel with no possible viewership in their area.
But, for a satellite provider with a presence in NY, NJ, CT, CA, WA, HI, MA, etc, it is foolish to leave money lying on the ground without making the simple effort to bend over and pick it up. It's just bad business.