I think, that in the circumstances, the crew did just fine.
Do you want a sure thing? Don't go to the antarctic .
Its not like they were flying into a 5000' strip in the middle of chicago and breaking minimums.
IF they landed, long, it would have worked out.
Lights in sight , they landed. Sure, they busted minimums.
The only questionable thing was the guy who kept saying the fog would go away.