I looked back at your old posts, I recalled one about your brother wanting contacting with his wife. Yep, aug 28th you mentioned his desire to talk to his wife to help his recovery.
Your brother needs to let go of his need to talk to his wife and focus on real recovery. I do not believe for one minute that anyone in AA is telling him to violate a NC order. I think he's trying a new avenue to get what he wants, and isn't respecting what his wife wants.
SHE will decide if and when she wants contact. In the meantime, HE needs to stay focused on recovery. He needs to respect that he obviously caused damage. Someone already posted about Step 9, and they're right. It would harm his wife at this point, so his needs are selfish and not healthy.
Quack...Quack...Quack