Let me get this straight, the timer on the house is 45days? Then the amount of time the items are stored with an npc is 35days?
45+35=80, so 80+ days of not caring about this feature would result in this, or am I wrong here?

But let us say these 80+ days are the right amount of time not caring about this feature it brings me to this.
Seeing as how housing is a limited resource in this game, is it not better to let those who will use it partake in it rather then someone who does not bother with it for more then 80 days? The best solution would of course be for SE to find a way in which housing was not limited, or at least store the items after a demolition for an unlimited amount of time. But still, a feature your not using for more then 80 days is a feature I find it hard to believe you would miss.