I don't know. They make a lot of judgy statements about these stats that don't seem to be based on anything.

I think about how Alaska has relatively few roads and six times as many pilots as other US states. And I wonder how Alaska would fare in a comparison of infrastructure based on the assumption that roads are extremely important but airports aren't.

I honestly cannot manage to draw meaningful inferences from any of this and I hesitate to speculate off the cuff on HN.