Is a graduation speech where the valedictorian yells: DEATH TO AMERICA, or some such thing, any different than yelling FIRE ( when there is none ) in a crowded theatre or auditorium? THAT'S NOT "FREE SPEECH"!
It was not confirmed he was going to say that. He just said that previously.
By your reasoning they can say you can’t speak at your graduation even though you deserved it because you posted Pro-Trump info on J6.