The SAA flights go through the International Terminal. PA makes money out of tḥse pax (shopping, dining, retail leasing etc.) QF services will go through QF terminal. QF will make the money. PA will see very little of it. If QF squeeze SAA out, then PA will lose even more revenue. That's why they are happy with the current arrangement. By being forced to allow QF basically a stand alone International/Domestic operation, PA are now pretty much in direct competition with one of their tennants. PA is dead right, QF will funnel the East coast pax through, just like the LHR pax. Its not about PER at all. It's just a tech stop.