flightleader, the BKI Air Asia aircraft from Terminal 2 are never requesting a backtrack. Clearance is always Hold at A and contact tower. It is totally up to the tower what happens next. We just follow. Sometimes backtrack and sometimes enter and vacate G, and taxi to J. If you see this as cutting que, then just tell the tower your objection or switch to tower frequency earlier. Not the LCC's fault. Anyway, most of the flights are now going to KUL at FL390 so should be more room for everybody.
P.S. On an ATC side note, could the controller at KUL let aircraft know if they want a speed restriction on decent before aircraft has started decent. So we can plan our decent profile with the speed. Giving a restriction once we already started decent doesn't help. Thanks.
Happy landings and happy controlling.