The IREX feels like it is at least two decades out of date
As does the rest of the theory and practical aspects of Aviation training in Australia, particularly in GA. So much emphasis in the CPL syllabus on finding a random homestead in the middle of nowhere using DR but very little emphasis on managing the many sources of available information presented to a pilot in a typical modern GA aircraft.
I'm pretty sure the ATPL theory syllabus still uses the 767 and even the pre-historic 727 as the aircraft studied. Not very relevant as the number of 727s (and similar Jets) still flying commercially in Australia can be counted on one hand.