Well, yeah! The burden on me is only to show that Phenom II bottlenecking happens.
The burden on you is to show that it doesn't happen. You can't do that, because it does.
It doesn't matter what excuse you make, whether the game is poorly optimized or not is irrelevant. That doesn't help the Phenom II owner when they're playing one of those games. The fact is, it happens in many popular titles at high details.
It does not happen with the i5-2500K.