Gee, whole families perished, according to the list of the deceased, the airline's boss lost a relative too (the CC).
As far as I know (not been there, I stand corrected) the decision point is way before short final, because there is no option to go around due to the mountainuous terrain. So, even with things getting massively wrong at the last seconds, you could end up "condemned to land", whatever the odds.
Said that, I can imagine that with the reportedly suddenly upcoming fog the pilots could have been faced with no other choice but to try to land, even when they already (did not) saw the runway obscured by local clouds. In one report I heard something like visibility 400 m, not confirmed...
RIP