They would if they were talking about KZ2 which is one of the best FPS's of this gen. Crytek can learn a lot about gun recoil, gun sounds, bullet impacting enemies etc.. from GG which makes this demo all the more disappointing since it does not seem to be using KZ2 as the basis for its gunplay but we shall see..
GG can learn a lot about how not to be a linear, set piece driven, corridor shooter from the first Crysis
I never thought the best thing about it was its graphics anyway.