With the new structure, if you think there is any unfair apportioning of costs etc, you now have someone to raise it with. I'm sure the new boss of will have some bonus element of his remuneration package tied to the performance of Qantas International and would be keen to know about them.
Given that he was previously in charge of Frequent Flyer, he probably already has a skill set in making the 50/50 accounting calls go his way and is trying to reduce the internal transfer from International to Frequent Flyer.