They have a right to the artifacts of their production - their specific footage of the event. They don't have a right to all possible descriptions of those even

They have a right to the artifacts of their production - their specific footage of the event. They don't have a right to all possible descriptions of those events. That would be absurd - someone could sing "old MacDonald" and have it claimed that it is a codified description of the events of a game. But of course, they only have the rights to their description of the game.