I suspect that cash flow is more important than the timing of expensing of interest . And as one who is too old to learn new tricks I do think that IFRS is simply a backroom scheme designed by the major accounting firms / or over educated accounting profs - to increase revenues or fill accounting journals.
At least with things like cost you knew where to start- now it is anyones guess!
My bet- IFRS will end up like beta! since it is so complex/and irrational to be unfathomable- and it certainly wont be trusted!
Now to get back to the interesting business of mining!