Puntosaurus I completely disagree that the fuel system is flawed. It is designed to ensure a steady head of fuel to the engines when there are significant attitude changes but like all fuel systems it needs managing when the fuel states are low.
The type has flown 2.8 million hours without problems hitherto.
No aircraft will survive if critical fuel pumps are selected OFF at the point when they are most needed. The lesson here is that the fuel system requires knowledge and management but above all MLAs are in place for a reason. They mitigate the natural risks associated with very low fuel states.
SID you still won't face the facts.