While not making ANY comment on the crash in question I well remember when Dennis Buchanan had a company in the PI called Metro Air, or some such, utilising Talair aircraft, Otters mostly, and Talair C&T.
All the guys came back from Manila with stories of the Phillipino pilots being VERY anti assy training. Their attitude was if one fails crash somewhere handy...like losing one in a Twin Commanche..only they applied the same thought process to twin turboprops like the Otter and B1900C.
Yes this was a long time ago...mid 80s...but......
Chuck.