Vjet
Without casting any aspersions on the chief pilot and operator, who have no doubt gained valuable experience from this unfortunate incident, one must also consider the implications of a double engine failure. Normally both engines don’t fail at the same instant therefore following the initial failure the pilot is faced with a control problem. If he is able to feather and restore control, he is going to be faced with the same problem shortly thereafter. Demanding on even an experienced and physically fresh pilot with the benefit of constant checking and training!
I think the crux of the matter is the fatigue issue. It is often better to stay overnight and attack the task in the cool light of the following day. Having managed a corporate operation where the pilot is given a sophisticated aircraft and a task to perform, much of the further management is left up to the pilot. But operators must stress that the ‘mail does not have to get through’ as many pilots, keen to impress their peers, will push the envelope.