I think you made a convincing argument that the board should be given those additional powers if the employee chooses to go the route of the board, but I still think this is a GIC-appointed board--it's appointed directly by the cabinet, by the Prime Minister, effectively--and if I were an employee and I did not trust the government in power, I would not want to go to a group of GIC appointees and ask them to protect me or to discipline the wrongdoer. I would rather, personally, go to a group of judges.
My respectful argument is you have made the case and convinced me that the board should be given those powers as well, and then you could have the choice left in the hands of the employee. Would that be reasonable to you?