BEagle,
You mentioned that passengers believed that Engine #1 was hard to shut down. Looking at that damage on the top of the wing could explain that. The engine control signals are fed by databuses along the front edge of the forward wing spar and that damage ontop of the wing is right on the money for possibly damaging those wiring routes.
If they had been damaged then the engine would continue to run no matter what happens in the flight deck as the engine has its own dedicated generator to power the FADEC and the LP fuel valve would remain open.
Hope this is of interest.
Jimpy