Do you really think that incidents due to fuel starvation will be a thing of the past with reliable gauges?
Come on........
Aviation's history is littered with incidents and accidents which occured despite people knowing exactly were they were in relation to limits and performance of their machines.
What is suggested next? Weight sensitive squad switches whcih determine whether the aircraft is within weight and balance limits? And if not you can not start the engine?
Did you use to stick your pet in the tumble dryer before they issued advice against such practice in the manual?
FD