It's more like... "no longer enforced at the federal level". But yeah, that still sucks. And it sucks for Europe as well because you're currently reading text that was served to you from the United States.
The lack of Net Neutrality rules in the US probably won't affect tier 1 or tier 2 ISPs however. They don't really have a business case to deny carriage to anyone. And besides which if that ever were the case, sites could simply pack up and move their hosting to some other first world country outside the US.
However, even if for some reason Slashdot was being disadvantaged by the lack of NN rules in the US and for some reason didn't feel like moving their hosting to outside the US, it would hardly be some great loss. It isn't as if some other company can't setup shop and provide me text from outside the US instead. Indeed,