They might - some already do (block or throttle torrent traffic, that is). The difference is that right now if your ISP blocks torrent traffic you have literal

They might - some already do (block or throttle torrent traffic, that is). The difference is that right now if your ISP blocks torrent traffic you have literally no recourse besides going to a competitor (if one exists, which odds are one does not). You are after all not legally entitled to torrent traffic. The change here is that if an ISP unilaterally starts blocking torrent traffic, you (or more likely, the EFF or similar org) can sue to have torrent traffic declared lawful, after which the ISP is legally bound to open the traffic. The trick here isn't that ISP shitty behavior will be impossible under the new rules, but rather that there will be more power to the citizenry to combat many categories such shitty behavior.