I doubt you’ll find any restraints of trade in the business world that are much longer than 6-12 months. Didn’t Borghetti, who knew the Qantas business intimately, go to VA after little more than a year?
At the end of the day the company agreed position won’t be decided by any pilot negotiators. It will need to be signed off by the ceo just as the pilot agreed position will be signed off by the pilots in the form of a vote. The job of the aipa negotiators is to come up with best deal possible for the pilots to vote on. In the case of eba8, it was unacceptable by a large majority and in the case of eba9, it was accepted by a large majority.