Obviously, on the ground, even after engine start, the door can be operated (common sense)
not quite sure I see the 'commonsense' there, Danny. Opening the doors into a running engine would not be ideal! I assumed there would be some sort of procedure to prevent such (other than c/crew), but obviously not. It appears from what I am reading that following an aborted take-off, while the f/deck are sitting, engines running 'consdering' their actions, it would be possible for ALL the doors to be opened by panicking passengers.
At least on the 737 classic it needed engine shutdown/depressurise to facilitate door-opening.
PS I WILL ask you again in six months.
