They are not transparent because they don't lose on it. Gamers will not go: "I don't like how this company treats its customers, and how it communicates with the public, therefore I will not buy games published by XYZ". In other words: gamers will gladly bend over for next CoD, Halo, GT, etc.
Worst offenders are Japanese - I hate their Famitsu/Dengeki crap, where everything has to go through those damn magazines. Then they talk shit e.g. recently Nomura - "we didn't show other characters, because we didn't reveal their clothes and weapons yet". WHO GIVES A FUCK?!
When they are not talking about useless crap that makes their games have 6-7 years production run you have the likes of Wada, promising international focus, worldwide simultaneous releases, making games for Western consumer, etc. Couple of years down the road and still nothing. Fuckers at Level-5 can't even bring Inazuma for the World Cup.