Montblack writes:

One of his problems was thinking he was 'here,' when in fact he was
...there.

Many of his subsequent decisions were based on that first wrong premise.

Nevertheless, his decisions were basically sound. He stayed with the
vehicle for days, waiting for rescue, which is exactly what he should
have done (and that saved his family). After a week, he quite
logically assumed that maybe nobody was coming, and in desperation he
decided to try to find help. He pretty much did things right, but he
was unlucky (and also somewhat unprepared, although he presumably had
no plans to go somewhere where he might get stranded).

The question that lingers in my mind is: Was the lock on the gate
already broken before the Kims passed through, or did they cut it so
that they could go through?

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