What would you suggest? I fly all the time and, especially on international flights...the lights are off half of the time, most people are sleeping, if you are in economy you have no idea what is going in the front section of the airplane, where most people are kicked back in recliners...it is scary easy to see how the cockpit could be breached in a flat second.
This crew violated their own procedures. If they had done as they were trained it wouldn't have happened.