Well, if you think this is just a walk in the park operation, NZ nearly did it again yesterday. These guys and their pax were extremely lucky. Weather closed in past the PSR, couldn't get back Held for 2.5 hours till fuel became critical, if it wasn't already, and then shot an approach well past minimums.
Dodged a bullet well and truly.
If ANZ are not getting all he help they can get then the CAA have reason to worry. This is not a walk in the park and nothing like landing on a similar runway overseas as ANZ put out and also espoused by Sandilands. Elsewhere you may have any number of alternates to go to.
Have a read. This doesn't tell the whole story though and only the good parts. This was a very very serious situation. Crew did a great job.
McCully in Antarctic emergency landing - Story - NZ News - 3 News