I think their point is that the effects of removing net neutrality mirror the effects already seen on large platforms, which is how most people use the web. Twitter, Google, Facebook, Microsoft, etc already have very opinionated views on what content can be on their platforms, and which content gets shown to users vs which gets lost in the mist of cyberspace (or is shadow banned). So the competition we're seeing here, between providers and tech platforms, is a competition over who gets to have this form of control over the media.