This the problem I see in PES fans, personally I think PES 11 was much better, it had its faults but the the main thing which drove me insane was the catch up bug, every thing else I could deal with. MLO was great, online was playable, Master LEague was good, BAL was good.
Now you get to PES 12 where the only things that have been improved are your players having better touches and AI, apart from that, I find everything got worse. Master LEague is dreadful and is a constant whine fest, online is filled with Speed Merchant abusers and playing realistic football is non existant and the scripting is unbearable. But the thing that turned me off the game nearly instantly was the passing and the shooting, PES 2011 had good shooting and great passing and completely destroyed that in PES 12. The ball feels weightless, almost none existant and scoring goals just doesn't give you that special feeling that PES, even in the crap next gen games always gave you.
So there seems to be a split in fans between 2011 and 2012 that could cause Konami trouble when it comes to feedback.