Funny how every airplane from asia goes either missing or crashing.
I know you're joking like I said before, but Malcom Gladwell's book
Outliers (Which is an excellent read, def worth checking out) has a section where he discusses the influence of a pilot's cultural background in relation to aeroplane crashes such as this.
Specifically, he suggests that in cultures that have more pronounced social hierarchies (where people must be uber polite and defer to their elders/superiors with the greatest respect lest they appear rude) there tends to be issues with communication. The style of communication is less direct and in situations like these the co-pilot may have tried to warn the pilot of a potentially catastrophic problem but didn't push the point for fear of appearing rude or disrespectful.
I believe
this article refers to that section of the book. (Disclaimer: I only skimmed the top of that article, it's prob not all relevant)
I should also note that supposedly these cultural communication problems in the roosterpit were acknowledged and addressed by the airlines involved, so it may no longer be applicable.