This is the kinda **** that wakes me up at night

Never thought of this either or tried to see if I could push it open. But I think that I have noticed that the bar just doesn't quite drop down in place when it up against the door on our 015 Lance, thought that this maybe a design flaw but could be purposely made so it won't drop down & latch in the closed position (against the door).
But in a panic situation such as a fire I don't think it would take much to break the cheesy plastic hinge though.