There are lots benefits to repealing the current net neutrality rules. I have a friend who works in the industry and she explained it me.
Net neutrality means that all traffic is created equal.
Sounds good, don't it?
But that goes both ways. Let me put it another way:
Your Fortnite traffic is equal to a grandmother's netflix.
Your Fortnite traffic is a few KBs a second, the grandmother's traffic is several megabits. But because all traffic has to be treated equally, that grandmother's 15mb/s worth of streaming video can slow down your 5kb/s of video game traffic. Your ping times suffer, while the old grandmother doesn't even notice.
With relaxed net neutrality rules that allow for traffic to be treated differently for different purposes (I.E. things that require low ping time being given priority over regular downloads, streaming media, torrents, etc) it would open up different avenues for ISPs to provide service to customers.
Want the best game service possible? You pay X amount of money. Don't care about games and are willing to take unoptimized connections because you just watch netflix and won't notice? You pay less money per month.