The regulations were instituted in 2015 after previously existing regulations were overturned by Verizon’s lawsuit because they explicitly wanted to start charging content providers for priority access, a fundamental change to the way the internet worked.
The ISPs wanted to change the game, the regulations were put in place to keep it like it always had been, and now they can go back to trying to charge Netflix for the right to access you and charge you extra for HD video streaming on Netflix and charge ad companies for the privilege of your browsing history to sell targeted ads.