Are you claiming there is a EU-wide firewall that EU could use (not the countries themselves) to block arbitrary websites? The EU hate on HN is reaching conspiracy-type levels now it seems.
RT.com, Sputnik News, etc. are blocked by the EU and the EU countries have to obey it, they have no say in this. This was done by Von der Leyen without any parliamentary oversight. It doesn't matter what your view on these sites is, it was a dangerous precedent. It also affects the TV stations.