That story is a load of bull, the only games they really mention are FPS games that turned heads when the trailer came on, and it doesnt take much of an engine to make somone getting shot realistic, just motion capture somone falling to the floor and your done. If they wanna talk about realism in differant games and the comparison of how the engine can make the physics realistic they need to look at racing games like GT5, PGR, Forza and NFS because cars are paticularly hard for an engine to replicate the physics. Which is alot of what the article mentioned.

Also making games for PC means constant very small graphical changes when graphics cards get 8MB more memory, which makes it less noticable, you dont play one game, then a year later think Wow these graphics suck, however with consoles you get more of a perspective on how graphics have been updated over the years, you buy a new console and are blown away by the graphics, well I am atleast, to get this on a PC you have to play a 5yr old game again and see how bad it is.

They also mention that on PC you can use open engines, which to be fair goes against the PCs strengh that its dynamic, if everyone used the unreal engine they would go nowhere, which is where the propriotory engines are better, yes they arent proven but if they do perform well they can look 10 years ahead of games using an older engine.

This writer knows nothing about games development, he would prefer a 10 year old engine in a game just so its on PC and thinking that his GTX580 will be doing better than an older card. Believe it or not if an old engine is being used and adapted the graphics, and realism will never be up to par with a new engine.