I think what you need - and what we'll get as the industry matures more - is more pervasive media training. I think the reason the pool of games biz talking heads is so small is because the task of communicating a message to the media in a concise, consistent manner is not an easy one (go try playing a game of "telephone" using 3 bullet points from the back of a game box and you'll see what I mean).

Without that training, you run the risk of those column inches being wasted on stuff that - while entertaining to read - has nothing to do w/ the game and (depending on how "entertaining" the interview is) could even hurt sales.