But Netflix systems are totally capable of handling this surge, It is ISP who are getting their Internet Pipes getting overfilled, They have requested Netflix to reduce there bandwidth for temporary respite. If anything you should be taking that refund or discount from your ISP.
While I absolutely get your point, Netflix is the service provider here, they exchange that data for money.
If I order from Amazon and Canada Post refuses to handle my parcel, I will have my money back as Amazon fails to deliver, because they did not account for Canada Post not shipping.