And maybe that's the truth too. What will come will come. When you are happy to put yourself in a pilotless aeroplane for hours on end, maybe I will start lying awake at night worrying. But in the meantime, it doesn't change the fact that FEs are not needed today !
Did you know Air France used to operate their 737s with 3 Flight Crew including a Flight Engineer? Must have been a cosy Flight Deck!