Next time you go fly trim your airplane for 100 knots with the autopilot disconnected then add 10000 shaft horsepower to it (remember turboprop not jet) and watch what happens. The aircraft will attempt to maintain 100 knots.
Add to that you've been awake since 0300 and it's now 2216.
They screwed up yes, but its not the only factor.
If I am paying attention to flying my plane, I don't ever LET it get to a stall. If I am tired from being up at 0300, I remove myself from the flight fatigued.