Emphasis on "ULR"
Those rules only apply if you operate a defined "ULR" flight, which one could argue that we don't (with the exception being LAX perhaps).
From CAAP 14:
6.2 Definitions
6.2.1 Ultra Long Range Operation (ULR)
An operation involving any sector between a specific City Pairing (Point A- Point B-Point A) where the scheduled flight time could exceed 16 hours at any time during a calendar year taking into account the mean and seasonal wind changes.
The maximum permitted FDP (including Ramp/Air Turn Backs) for any ULR operation is 22:00 hours on both a scheduled/planned and actual basis.
Note: A ULR operation applies to both sectors of a city pair.
If that is the case then why do we have to be acclimatized for SYD, MEL, JFK...???