It is my understanding that unless the NPA is already in the data-base, then VNAV is not recommended and V/S preferred. Since MEL rwy16 does not have an NDB approach in the data-base, then VNAV should not be used and FL-CH definitely not to be used. Regarding the F/o's low hours -welcome to Asian airline experience! At least they got away with it and hopefully learned from it.
By the way, what is CASA's aversion to ILS runways, especially CAT 2/3????
Stuck in the 20th century - or is it not deemed "a requirement"????!!!!