I think he/she meant they need to push it out of September.They will. The media event is a great way to push out a trailer, gameplay videos, and articles from journalists playing it first hand. Soon after that the demo will hit E3, SDCC, and Gamescom before the game launches in September.
GameInformer might also do a cover story on the game with a month of exclusive coverage, or IGN can do one of their exclusive things on them (though I forget if it that's for first round of information about a game as opposed to what GameInformer does where they put out information about a game with information already out there).