What bolded portion of what? You have failed to supply any reference. I think the very first sentence says it all:
(a) No authority convening a general, special, or summary court-martial, nor any other commanding officer, may censure, reprimand, or admonish the court or any member, military judge, or counsel thereof, with respect to the findings or sentence adjudged by the court, or with respect to any other exercise of its or his functions in the conduct of the proceeding.
"nor any other commanding officer" has to include everyone up the command chain besides the officer who convened the court martial. This includes Commander In Chief Trump. He has said many times in many public media appearances that Bergdahl is guilty and should be shot or thrown from an airplane.
His intemperate remarks in public have destroyed any chance Bergdahl had of getting a fair trial. Bergdahl walks.
