Mud Skipper,
At no time has ACMS stated he would take the longer runway for convenience sake. And he has been very patient on multiple occasions on this thread to say so.
Is the comprehension of Australian based pilots so poor, that a well explained argument by several experienced long haul widebodied commanders (and Haughtney as well) and several experienced ATCers not be understood?
In a nutshell, on some occasions, due to particular circumstances, the offered short runway is not long enough. It is the commanders job to decide what the circumstances and conditions are. That's his job. Not really all that hard to work out is it.
PS. Have been offered 25L twice into LAX, a change from 24R but nothing too earth moving. Perhaps you don't get out much?