Nothing to do with the quality of building construction; everything to do with physics.
Think of your mum's perfume atomiser, the "old-fashioned" style with the rubber squeeze bulb:
"All atomizers work on the principle of air flow and suction. When horizontal air passes over a vertical tube, it causes the air and liquid inside the vertical tube to be pulled upward. Classic atomizers use a squeeze bulb to store a lot of air that moves quickly over the feeder tube when squeezed."
https://sciencing.com/perfume-atomizer-work-4568884.html
In this case quickly-moving wind moved past small windows, and the victims were the perfume that was "pulled
upoutwards"...
maximus otter