The war was won by the defendants for no other reason than the plaintiffs lost on all accounts per the Appellate Court Ruling which unamiously affirmed Judge Strom's ruling.   The PSA is there to insure competition amongst packers contrary to your review. 

Only the plaintiffs lost along with their few misguided followers.  The progressive and forward thinking producers who are in the vast majority all won.  They won the right to choose their own method of marketing their own cattle.  That is also why any legislation to control "marketing agreements" will fail.  You are with the vocal misinformed minority.  The will of the majority will win out as it should.