I have a lot of antipathy towards the passengers who are getting out with their backpacks; if one takes the time to pick up their stuff they are probably in the way, take more time getting out, and could cause the death of other passengers or staff.
People just having been in a crash, however, are in a different situation. They've just been thrown upside down, having to release their seat buckles and fall down onto the roof, then being ushered out in panic. Them not behaving perfectly rational should be excused.