I apologise, I hadn't realised that PT6 and Julio etc are cabin crew, now I understand where you are coming from. You would have ordered the evacuation because you had a clear understanding of what was going on outside the aircraft.
As cabin crew would you make every effort to ensure the flight crew were aware of the situation unfolding or would you classify it as clearly catastrophic and innitiate the evacuation of your own accord? The only reason I ask is you need to be careful because in this situation if both engines have not been shut down prior to innitiating an evac from the cabin you could be putting peoples lives at risk.
Of course, if you are flight crew passing comment, you can assume as much as you like, but until you know what the flight crew knew on the day you cannot pass judgement (well ok, you have and will continue to do so, but to do so is foolish).
GBD