The ISP's feel like, burden or not, since Netflix represents more of the traffic they should pay more of the infrastructure cost. Many people fear that if Net Neutrality is repealed, the ISP's will have a giant lever (in the form of levying fees on customers for accessing Netflix) to squeeze Netflix to get them to cough up more cash.
It's an old & interesting debate about how data service ought to be billed. If 26 customers pay for 50MB/s service, most use 2MB/s, one uses 50MB/s, and the uplink is sparsely provisioned at 100MB/s, what is fair? One customer is using half the capacity of the link but only paying 1/26th of the costs, while the others are using 1/50th of the capacity and paying 1/26th the cost. Many might argue the one customer should be paying more.
It's an old & interesting debate about how data service ought to be billed. If 26 customers pay for 50MB/s service, most use 2MB/s, one uses 50MB/s, and the uplink is sparsely provisioned at 100MB/s, what is fair? One customer is using half the capacity of the link but only paying 1/26th of the costs, while the others are using 1/50th of the capacity and paying 1/26th the cost. Many might argue the one customer should be paying more.