I notice that the pilot Shah was described as an aviation geek. Shah had a Boeing 77 simulator at his home(!) in Kuala Lumpur. “We used to tease him. We would ask him, why are you bringing your work home,” said a friend. Shah also collected remote-controlled, miniature aircraft!
That suggests to me the guy is a total loon. He lived for his passion - flying. Maybe he wanted to die engaged in his passion also?