Some people, and also the inventor of the WWW, do not agree.
But you can’t say they "banned" or gave a "heavy blow to" Net Neutrality.
They created a very limited law, that provides some of the protections of Net Neutrality, but most importantly, it creates more competition between ISPs.
But, as most of the other protections of Net Neutrality are anti-monopoly laws, the ECJ might end up ruling that, if one combines this law with antitrust laws, these protections are implied.