if they were flying the loc/dme apch, why has there been so much mention of RNAV and everything else, GPS etc.
it seems to me that you level off at MDA and either see the runway or not...if not , go around
if you do, you must be aware of visual miscues and constantly cross check everything.
I am sure everyone remembers the L1011 crash in the everglades(everyone occupied with the landing gear position light), I've mentioned it...but if everyone is looking for the runway and no one is minding the instruments, you can fall for a big trap.