With that I can certainly agree. As I suspect would virtually everyone with relevant experience. In any event, once the first engine flames out, the situation, and immediate action required is completely and utterly unambiguous. Which in a sense is yet another reason why fuel starvation (without contamination) seems an unlikely scenario?
Even with the numerous possible 'issues' in the fuel system. The red lights are your safety net. That is precisely what they were designed for.
You asked whether it would be possible to tell whether the red fuel lights were on at impact? Without recording equipment on board, it is my understanding that would depend on whether the bulbs were damaged or not. As I believe it is only possible to determine the energised nature of a filament at the moment at which it fractures?