'Rays Territory' implies an abundance of 'fans'. The Rays have maybe 1000 fans who have followed the team since it's inception, and I respect them. However, the other 50 thousand screaming, cowbell clanging inbred Floridans who claim to root for the Rays are not fans.
Calling Tampa Rays Territory is like calling Baghdad American Territory. You may think you're in charge, but the second something goes wrong you realize you're surrounded by maybe 3 friends and at least thirty enemies ready to burn you alive.