Maybe its just late...
But while looking at B6's route map I noticed that MCO isn't labeled a "key city." Yet it has more destinations than OAK or IAD (which are "key cities"). In fact, by my count, LGB and MCO share the same number of destinations. While I recognize LGB is the west coast base for B6; yet MCO is their service center. Is there a definition within B6 for a "key city?"
Or maybe I shouldn't be on the forums with a lack of sleep and leave the marketing guys who made the map alone.