The article is about positive discrimination. The so-called critics fear that there is room for additional fees for for enhanced services, even the FCC clearly says that services should not be degraded and treated equally.
When FCC says that they never banned all prioritisation every “critic” is in state of alert. They ignore the fact that internet needs kinds of regulations to work properly on technical level and conflate the statement with the one above. FCC probably allows technical measures to regulate important cases of traffic shaping and even blocking when it’s harmful for the service overall. This implies the fact that net neutrality can be guaranteed with these regulations.