Yeah, I read that. It sounds like it might be even simpler than Wolfenstein's system (if I recall correctly, you could hold a button to lean instead of move). From the way it was described, it sounded like the system in Crysis 2, where if you were behind cover and you went into 'aim mode', you would automatically lean out as needed to aim at your target without having to press any other button. Either way, it's a hell of a lot better than any 'sticky cover' system that I've tried.
Maybe I'm forgetting exactly how cover worked in Wolfenstein, but anyway, the key point is that you can take cover without any sort of 'lock-on' mechanism, and you can lean out of cover to shoot by using the 'aim down the sights' mechanism. Sounds good to me!