What stunning failure? 36 J seats 2 Perth/Melbourne/Sydney/Cairns always over the top + 100's of Y full.
OK, I'll be more specific. The A330 model failed miserably on the SYD-MEL-BNE triangle, where frequency and turn around times were a vital consideration. Too long to load, too long to turn around.
PER/CNS routes aren't required to have the quick turn around times.