Life is harsh and death is fatal.
I see both your points,but the fact is this could have been far worse and only luck has prevented something far worse happening.
Was this person a ppl or worse a commercial pilot and what cost another moment of not paying attention. a couple of hundred people, few million quid in aircraft.....
I am by no means perfect and do walk round twice,but that is to make sure the door is where I left it.
Flak awaited