OZ is a uniquely challenging environment for foreign crews, the sad part is that it isn't due to weather, terrain or any other environmental issues, it is down to the crap rules, procedures and lack of proper infrastructure.
Disagree on that blanket statement. The Australian rules when it comes to conducting instrument approaches are quite straight forward and in most cases accord with ICAO procedures with perhaps minor modifications to increase safety. if a foreign crew is unable to complete a normal instrument approach without all the drama associated with (for example), the Thai incidents, it is not the fault of those who design the procedures. The fault lies in the regulator of the country of origin for not ensuring their aircraft crews are competent in normal instrument approach procedures.
Cowboy flying (meaning careless, lazy and potentially dangerous) happens in airlines as well in other flying jobs. There have been many similar published incidents over the years by foreign operators into Australian airports. Ask any ATC controllers at the major international airports and I am sure the stories will flow although these never hit the media.