The pilots screwed the pooch, period. This is BASIC multi-engine flying.
I am not sure how many V1 cuts, V2 cuts I have done in the sim and I personally have lost in the course of a 28 year career lost 5 engines, 4 were as single pilot. Its basic stuff.
low experience; captain 42 years old and 4500hrs? not much flying per year. I had that much time in my first 5 years and was only 25. the F/O...16,000 hours...hmmm...a 16,000 hour F/O..why was HE not a Captain? Seniority? perhaps, perhaps he was a weak pilot and could not upgrade.