Seriously? That's the best they could come up with? I hear MetroStars, Clash, Mutiny, and Fusion are available. Even better, so is Fury, Atoms, Freedom, and Charge. Hell, I'd take Donkeys, Catfish, Prairie Dogs, or Mongoose over Cosmos.
You will always look like posers and wannabes if you name any team outside of New York or New Jersey the Cosmos.