This is absolutely their right.

I like how targeted some of it is (no one involved with the “production of DVDs” is obviously there to knock out Robert Meyer Burnett).

Their arrogance of some of the major fan films has been the downfall of all. Axanar’s page is already filling with people saying how they’re not going to support any official production because of this. Which is exactly what the fan films should NOT be encouraging, since it basically proves that their productions are causing a loss of income to the copyright holders.