It's in microsoftish, it means: "go buy windows 7 and make us more $$$"
Maybe there's some long-game benefit to supporting Windows XP forever, but I can't see it. Windows XP was released in 2001. It's a nine year old operating system. Software costs money to develop and maintain, so why should Microsoft continue to release free updates for such old software? Is it unreasonable for Microsoft to expect users to upgrade at this point?