Kind of obvious that as they are ramping up the promotion of FFXIII, they'll tone down the exposure of Versus XIII.
However, I don't know what the site is talking about. Versus XIII didn't get a lot of coverage to begin with. Just the odd trailer at every TGS and Square event, which is exactly how Square does it for their FF and KH games. Give the public next to nothing for years and then months before the game releases, start flooding out the info.
View