Chop
65 is the ICAO nominated for max age on the flight deck, but it is up to individual countries to nominate an age...keeping in mind that if the country flying to has limited it to 65 you wont be able to go. In fact there is prob no reason, except for CASA PNG, that someone over the age of 65 couldn't do international flights from PNG to AUS and back as Australia allows over 65.
But I don't see anyone on this website stating that PX is not correct in its intent of not crewing international flights with pilots who have past 65 due to ICAO/CASAPNG, just stating that they are getting rid of guys who are turning 65 without giving them a fleet move to domestic where they CAN operate past 65. So your post does not really contribute anything to that we all know.
But PX continue to employ very low time or no PNG experienced or no jet experience to operate the domestic jet operation ("not to mention" 3 guys with a combined training of around 700 hours and weren't checked to line!!) when they have extremely competent pilots with extensive in country experience and significant jet time who PX could certainly use to keep it safety standards up.
So considering that PX has ended it extremely successful cadet system, they will struggle for some time to find guys to adapt quickly to the PNG operations (almost no nav aids, a Fokker fleet that can't do GPS approaches with visual approaches the norm on sectors with Lowest Safes some around the 17,000 foot mark) when they have the guys that are keen for a return to Domestic.
Anyway, at the end of the day it is their train wreck I guess.