As quoted in the article, the law would not meet the narrowly tailored requirement needed to supress a first amendment form of free speech as it leaves the speech being supressed open to the interpretation of others.
It would easily be decared unconstitutional.
It’s interesting though just how quiet this is being kept. None of the major news outlets are talking about it. It’d be interesting to see them try to censur the US, Anonymous would have a field day with government servers.