I think your ears might be damaged from those 4 spooled donkeys because no 737s go in there let alone the Qantas ones. Pavement strengths at the moment are huge a concern, in fact the 146's have to use F30 for TO. Although after the possible extensions, runway re-alignment, inter-planetary alignments and fitment of wings to pigs, a 737 may be able to go in there.
Food for thought:
It's all about rig tranfers with on-shore staff increasing as gorgon goes ahead. So what company is going to allow an A320 or a B737 for that matter, to sit on the ground for nearly 3 hours during the peak part of the flying day ie 0830 to 1130, while tranfers rotate? In saying all of this, currently QF has a 737 sitting on the ground at Karrachi for about 3 hours, but are not happy about it and will possibly change in the not too distant future.