So according to that logic, Cincinnati is a podunk town not deserving of its own airport because Southwest doesn't fly there.

Mmmmkay. What would Venus Flytrap or Dr. Johnny Fever say about that?

And I guess they shouldn't have put that big Airbus plant in Mobile, Alabama because not only isn't it a worthy airport, it's also not building 737s, which are the only true airplane?

This will not make Airbus corporate happy if they have to fly into Pensacola on WN and then drive another hour and a half to the main plant.