I think it has more to do with the degradation of piloting skills all over the world. This has been the result of airlines, manufacturers and regulators facilitating a rapid increase in world wide airline travel without the impediment of ensuring a high standard of training. You can blame it on the nationality and culture of the individual pilots but how do you explain the Turkish Airlines accident in Amsterdam and AF447? Certainly Indonesia seems to have more of the headlines but I think it is a symptom of the world wide problem not just because it was a B team crew at the controls.