This is actually good for Netflix and terrible for any competition. While Netflix probably has to hand over a bit of money, they are in a much better position to do so than any of their competitors as they're the biggest. In effect this creates a massive entry barrier into the video streaming market. You will now likely need to set up a massive infrastructure and pay massive bribes to various internet providers to be…
If you're a small provider, you tend to buy transit from one or a few providers, and pay per bit in whichever direction has the most traffic.
If you're bigger, maybe you can setup peering. If you have relatively balanced flows, and meet other qualifications, you can usually get free (settlement free) peering. If your flows aren't balanced, then the tradition is that whoever is sending more pays. If the networks you're establishing paid peering with are cheaper than your transit provider (usually the case), then peering is still a win for you, and a win for the other network.
If Netflix wants to get settlement free peering with Comcast, they need to balance their traffic to Comcast (maybe partner with a backup service, or web crawler)