I don't know; they seemed overly-concerned about how the public would perceive the treatment of the pigs.  They were assuring us that the pigs were allowed to make their own choices (without elaborating).  We all know they were just bacon on legs until they got the implants, right?  If those poor pigs consented to having brain implants, then they've violated the first commandment of Animalism.

Whatever goes upon two legs is an enemy.

 Just wait until the other pigs get wind of this.