[yk]

The phrasing the court uses is precisely the one used in the German constitution to allow restricting basic rights for political reasons. Though the court uses "probably against the constitution" in German and Germany's law is not as directly case law as in the US, the court ruling is still saying that being a Marxist "probably" warrants suspension of the constitution and only in the specific instance of a long running reading group who are otherwise harmless basic rights may be granted.