Where did you get your law degree? Email your ConLaw professor and ask them about it.
Because there's hundreds of years of precedent protecting political speech, whether true or not, regardless of the platform (including broadcast media). This is a blatant attempt to silence political speech the current regime doesn't like -- it was literally "cancel this guy or we'll make things hard on you."
They didn't even try to couch it in the terms you're using to defend this entirely authoritarian attempt to chill free speech. Why are you being an apologist for these folks? Or do you support having a lawless government?