My understanding of the power roll-back scenerio is the result of a failure of the FCU unit. In this case the engine will not flame out, but "slowly" roll-back to an idle speed below normal ground idle speed, approximately 40% Ng. The use of the MOR will then deliver raw fuel to the engine, bypassing the FCU altogether, and allow the engine to accelerate to normal operating speed. Of course, as mentioned previously, there is a very high chance of over temping the engine as the rate at which fuel is delivered to the engine is no longer governed by the FCU, but by the pilot.
I'm not saying pilots are to blame, I'm just indicating that the MOR is an extremely sensitive controllever that one cannot advance as rapidly as a Power Lever and that in an emergency situation where the adrenaline is flowing, the tendency to advance the MOR too quikly is very prevalent.
Anyway, should my understanding of the situation be correct, then why did the engine flame out?