As important as what Berman decided is what he didn't make a ruling on. I thought he clearly chose just the points where he thought his ruling would be unassailable, since he pretty much could tell that the NFL would appeal. Federal judges, in particular, do not like being reversed, and I read his decision as crafted very much in that light.
I will be suprised if the 2nd Circuit Court of Appeals spends too much time on a case that has been as stupid as this one all along, particulary since Judge Berman made it easy for them to agree with him. He went out of his way not to substitute what his opinion as an arbitrator would have been, only to point out where the process of arbitration was unfair to Brady and the NFLPA, citing authorities all the way.
I'm sure the NFL, in its appeal, will have plenty of authorities to cite, showing that Berman should be reversed, but you can be sure that Kessler is already at work on his response, pointing out to the 2nd Circuit why all those cases do not mean what the NFL says they mean, and why the ones Berman cited are the correct ones. He's been pretty good all along at anticipating what the NFL would do, and coming up with some good answers.