Whilst we spin our wheels over what fuel level might be reasonable or not I'm not sure what is ambiguous about :-
The red “low fuel” warningis triggered when there are 32 kilograms of fuel in supply tank 1 and 28 kilograms of fuel in supply tank 2. When this occurs, the pilot has 8-10 minutes left to land, regardless of the conditions and as dictated in the flight manual.
As previously stated, the red “low fuel” warning is generated by an independent indication system with separate sensors in each supply tank. This warning continues to operate correctly even if the fuel gauging is inaccurate.
So regardless of a fault with pumps or operator error in not turning things on / off it seems pretty clear that if you get the red "low fuel" alarm you need to land.
he had enough fuel just not in the right place, and maybe he was being shown it was!
Thoughts?
Even if the fuel gauge suggests you have fuel in the tank it seems a dumb trade to believe one instrument over another and allow yourself to be more optimistic. In fact it doesn't "seem" it was.