curiously narrow impact area for an ATR
Those are big trees... Also the long thin wings of the ATR outboard of the engines would not make it past the first larger tree trunk, looks a straight and level into the hill to me. Another sad case of aluminium tube vs. granitocumulus.
Having hiked in similar environments I can speak from experience, in low light conditions the three feet is not an exaggeration... Weather in tropical mountains changes incredibly fast, I can easily envision a scenario where they committed to a visual descent into a valley, and found themselves in IMC halfway through without a good plan B.