Yes, he said it in an interview with Gamasutra (page 3).
GS; One of the other things that this studio is well known for is very carefully controlling the information that comes out before and during a game. In the movie industry, they are offering fans more of a peek behind the curtain of late.
GS; It doesn't seem like you are very eager to embrace that. Does it take away the magic?
DH: That's really it. It was really important to us that the games felt kind of magical. And seeing too many videos and or even seeing interviews of us sitting there pointing stuff out and showing how it's all done [detracts from that].
I think with the movies, the less you know about the stars the better. The best movies are where you go and don't know anyone that's in it. And we want to keep that feeling -- we always did and continue to want it now -- where it might annoy people that we don't give out more information. But I think the end point is people enjoy the experience.
Obviously, it's a balancing act to sell the game... We used to have an exact formula for how much information you give out and how much you wouldn't. Literally, it was sort of a pie chart. It's hard to be that controlling, but you certainly want features that people are discovering. Some amount they learn about in advance, and some amount in reviews, but hopefully you can keep [other aspects] quiet until [people] are actually playing the game, because you want it to have the surprises and you want it to be magic.
The less they know about how things are pieced together and how things are exactly broken down, and exactly what our processes are, the more it will feel like this thing is alive, that you are being dragged into the experience. That's what we want.
http://www.gamasutra.com/view/feature/134918/dan_houser_on_how_rockstar_does_it.php