Speaking of facts and questions...
CNN's Richard Quest (to whom I tweeted a question on this) just said on TV that his understanding "from US officials" is that when ACARS "reported in" at 1:07, it communicated to ground the "next 2 waypoints"...
...one of which is presumably this "pre-programmed left turn" AWAY FROM BEIJING
If this is Flight Plan A (A for Active) why is KL ATC not saying,
what? huh? where are u going? come again???