You know, I kind of understand the logic behind this. Video games can be very addictive, and some even exist around the premise of being addictive. It's easy to say for someone who doesn't have an addictive personality that it's all bogus, and I imagine it's even harder for someone who is in fact addicted to admit it's a problem. Very much like with alcohol - the majority of people can drink a lot without feeling it consumes a huge part of their life, and a person who does have a serious problem with alcohol will never admit it to themselves or anyone else until they've hit rock bottom and someone else wants to help them out of it.
It's just a different form of addiction. It's psychological, not physical. And since it's a well accepted form of entertainment and social activity, the lines are blurry. I myself have struggled with coping with the real world and not putting video games (amongst other things) before everything else. I have wasted many many hours with video games as a sort of escapism. I realize that the problem isn't the video games themselves, but they have not in any way helped me in structuring up my life and getting me back on track. And not speaking for myself, there is a reason many people have lost their jobs and forsaken family, friends and studies for World of Warcraft. It's not because it's just such a good game.
As always with addiction, the problem lies with the person and their current life situation. Even with physically addictive drugs, something has made them experiment with those. The reasons for such problems are many, first and foremost economical and psychological, and there are many things that can improve in our social structures to avoid this. But not recognizing sources of addiction and escapism will not improve anything. That said, forbidding people from doing something is a sure way to tempt them even further.