The reason Yankee Universe is so happy is because the Yankees at one point were willing to trade away their future, something I could not agree with, for Johan Santana. Trading any combination of Phil Hughes, Ian Kennedy, Melky Cabrera (And I think I even remember hearing Robinson Cano?) would have made me really upset. Then you sprinkle on prospects like Jose Tabata and Austin Jackson, and it becomes ridiculous.
The Yankees were able to get rid of him without giving anything up, a mere win-win in my book.