Neither of those flights are daily (BNE-LAX 4 x weekly, MEL-LAX 3 x weekly), and I can categorically & factually tell you that at least the BNE-LAX is very very full on a very regular basis.
My point exactly. At present there is not the confidence that they can operate these services daily and maintain the yield with an ER. It would br far less risk with a 787 sized aircraft.