I'm not so sure about this..eople are dissapointed because there was lack of gameplay on exclusive side and beside Halo 4 we knew exactly what to expect from them.People wanted more core exclusives using controller and more gameplay footages instead of cgi trailers.Let's see the hardcore games (exclusives):
MW3
Tomb Raider
Ghost Recon
Mass Effect 3
Gears 3(announced at last E3)
Ryse(seems to be on rails first person fighting game using only kinect)
Forza 4(no gameplay,just replay/garage/cgi stuff)
Fable 4(?)
Halo 4(I'll give you that,but just CGi trailer...ofc people are dissapointed)
That's plenty of stuff, and there's certainly going to be a lot more material from all these games until the end of the week.