The evil hand of fate, is waiting to tap any of us on the shoulder, when things start to runaway from us. A study of most aircraft incidents and accidents will reveal that is seldom just one fact that leads to demise.
The practice of practicing live engine shut downs has not been used by most aircraft training units, mainly because of the time required to get the engine performing. The RAAF for example did not use this practice and instead would bring the engine back to flight idle. Which almost duplicates a loss of an engine, but allows very quick response if the engine is needed.
Fortunately the sad lose of these lives, allowed better systems and controls to be put in place, and the problem should not come back.
In todays situation of simulators being available without the high cost involved if something goes wrong.
But at the end of the day, military flying brings with it a much higher risk of danger, let us hope that the controls of today, keep the exposure to danger to the minium.
Regards
Col