I think where they have the spacestation docked could have something to do with it possibly. The gas pressure is a measure for the density of thermal energy in the gas, and the gas pressure is very small in the thermosphere, because the thermosphere is almost a vacuum. Also the hole i Believe was caused by a micro meteor and the psi would have also been lower on a pin hole. Believe it or not where we spend most of our time in space doing stuff there is still atmosphere it's just very thin . We spend a lot of time in low earth orbit and that's not quite the same as the rest of space.