I am curious about the two pilots' conversation and the timing.
What is the first guy reacting to when he asks "why did you cut the fuel?". Is he looking at a 'fuel flow' readout? Is he just feeling the engines die and lose thrust? Is he looking at the fuel cutoff switches in the cutoff position?
How long after fuel cutoff does this conversation take place?
Why does it take ten seconds from fuel cutoff until the switches are set to 'Run'?
If one crewmember selected 'cutoff' on the fuel switches, I cannot believe it took the other guy, with his aircraft losing power from both engines, ten seconds to check the state of the fuel cutoff switches and put them back to 'Run'.
I can imagine a software glitch cutting off fuel to both engines, puzzled crew looking at fuel cutoff switches that are physically in the 'Run' position while the engines are obviously starved of fuel and taking ten seconds to try flipping from Run to Cutoff to Run in desperation.