It seems like there is an element of clash between western and eastern culture here. I believe in the previous flight problems with airspeed discrepancy and the stick shaker coming on one side were experienced. And the runaway trim condition was also experienced. Yet - the flight continued to the destination. Is this what would likely happen in Europe or would the pilots elect to make an emergency landing in such circumstances?
I find it hard to believe the crew were not aware what the correct course of action was when they saw there is something blatantly wrong with the automatics in the flight control system. Switch it off! The CVR will explain everything once it is published. They were either trying to troubleshoot the problem and/or some conflict (save face/pull rank) occurred in the cabin.
Golf Sierra