If the Irish Einstein has figured that out then why the f##k isn’t he pushing the A380 and 747 out the door ASAP
I suspect the answer is two fold: fuel prices (the reason for the transformation) and the lack of capital budget. They expended huge resources growing JQ for no tangible return (yet!!!)
It matters little the manufacturer but the simple economics of seat cost given that fuel impacts the operating revenue in a drastic way suggest to not have a twin engined international fleet is at best short sighted. It shows how little corporate governance is actually evident when statements like Mr Joyce's are considered newsworthy and somehow insightful where shareholders reward myopic strategy with the largest corporate pay cheque in Australia.
And it's not the whole story, is it?
From a RASK perspective no it is not. It is quite possible that the RASK/CASK premium is better for certain configurations than others.
However any calculation of operating cost returns you to the same question; Mr Joyce is only working out
now that CASK is lower on twin engined aircraft?