Whilst the OP has shot himself in the foot by being slightly disparaging about our HK born friends, I can still see his point and all of you should wind your necks in.
Overheat of ANYTHING is one step down from the biggest f**king emergency possible on a plane- regardless whether the computer tells me Land ASAP in amber or red - use ur brain.So this clown decides to turn back around because Manila with one ILS and an RNAV is unfamiliar???
I'd rather land in Manila than have to land in Puerto princesa because the overheat turned into something much worse.
One day, just one day. Its only a matter of time... Mark my words