What were they thinking?
Literally. Did they really think they could rely on the aircraft to get them on the runway in FINAL APP mode? Even if the runway threshold coordinates were correct, then still there are many ways in which you could end up in the wrong place:
-colder/warmer than standard temperature leading to under/overshoot of the threshold
-error in the reported/set QNH. 1011 in stead of 1012 is already a 30 feet difference over the threshold..
-any other database error, not uncommon in our present day databases, each year we get one or two interesting corrections per NOTAM
To bust minimums is bad enough, but to do it all the way to the deck, on a non-precision approach? What were they thinking?