Are you trolling? Football is essentially a finite resource - there are only so many games per year, and the companies that bid to broadcast the games have really good accountants who know what the revenue and profit will be for those games. The NFL auctions off the broadcast of these games. Amazon bid $1B for the Thursday games - cheaper than the other games because Thursday games are absolute dogshit. "Exclusive rights" is just a stupid way of saying it.
Why the heck would the NFL need let every single broadcaster carry the games? They're not a public service. Oh - and by the way - because of anti-trust concerns, ALL games have to be available over-the-air for the locals to watch. So, just because Amazon (or ESPN, or NFL network), a paid service, gets the rights to show the game to some part of the world, they have to partner with local broadcasters to give the home team a free way to watch the game.
And I say "part of the world" because broadcast rights for foreign markets are usually subject to ANOTHER auction - which means that "exclusive rights" is only "exclusive" to a particular market that is defined in the contract.
The monopoly here is the NFL, poindexter. The broadcasters have a marketplace and competition. The NFL DOES NOT. There were TWO attempts last year to create competing leagues and both of them failed.