All the more reason for ISP competition. The government will be slow to (or just won't) police this behavior so the ideal is to enable customers to quickly replace awful service providers with alternatives.
Agreed, and decreasing competition is one negative impact if pure net neutrality is enforced. Nobody is going to build out (or improve) an ISP infrastructure only to have Netflix/Hulu/Youtube suck up most of your bandwidth from 5PM to midnight local time, forcing you to continually expand your infrastructure on your own dime.
Google foresaw this, hence Google Fiber / Alphabet build-outs being stopped 14 months ago.