This was an American made aircraft with American conceived automatics flying into an American airport following an American designed stepped procedure. The approach was being flown the American way (visually) under the direction of an American air traffic controller. Most likely the crew were trained by an American FTO to SOPs and an AFM influenced by American carriers.
Of course (as some posts would have) the only factor to be considered in this crash is Asian deference culture
However... assuming the PM wasn't looking inside at the airspeed he must have seen four whites turn to four reds in a matter of seconds on short final and still very calmly read back "Clear to land" without a quiver in his voice. This is the bit I really can't understand!