Welcome to the world of video-gaming, this has been going on since
1984. Internet didn't even exist on Cern these days while everyone was predicting flying cars will become reality till 2001.
Although I do not also like what PD is doing, you have to look at that issue much more less west-o-centric. PD is Japanese developer and all employees are also Japanese. Their cultural heritage and overall life-logic massivly differs than western.
Marketing is also different. Everything is different. And since they're so important on the global scale to SCE, PD has the strength to keep their business humble untill they really want to.
If you look at the past,
nobody had any idea that Nurburgring will be in Gran Turismo games before BMW Demo arrived - and it was just 2 months before GT4 Japan release.
The very first glympse of exhaust-flames in GT4 was given in some spy-movie less than 4 weeks before game was actualy released in Japan. We didn't have a clue about features, car list, anything untill game was actually released.
Hence, I still remember how I was amazed when I first popped the GT5

rologue PAL disc in my PS3 and witnessed F12007 for the first time.
Nobody even knew they got Formula car in the game, not even SCEE staff.
And that is good in some wierd way. If nothing else, it keeps people wonder about what hides underneath everything.
And I guess that in these days of full-frontal-nudity and wester-o-centric bestiality-porn we somehow forget how beautiful and subtile true old-school erotica can be.