You've got that backwards. From this very high level the Internet is PULL ONLY. Netflix doesn't start streaming data to customers just to waste bandwidth and

You've got that backwards. From this very high level the Internet is PULL ONLY. Netflix doesn't start streaming data to customers just to waste bandwidth and fuck up your network with a flood. That's a DoS/DDoS attack. The "flood" is actually your paying customers who thought that you were telling the truth when you promised them X/Y internet service. They are trying to utilize the service they have paid for and you are preventing them from doing so. To not provide them with the service that was promised could be construed as fraud informally if not legally. I'm sure there is plenty of language in an ISPs retail contract that says that customers can fuck right off for any and all reasons and no matter what the ISP is not at fault. But while it might be legal it's definitely dishonest.