I don't think that is related. Don't you think the causation is in reverse, and the inability to generalize that drives the preference in video games? Games are just like movies, and it wouldn't make sense to tell people to stop watching movies when they're young otherwise you'll be wasting so much time you could spend on something else. That said, it really depends on the game, especially today. Some games are meant to be mind parasites, and others are meant to be "proper" games like chess, where you are figuring something out and are required to think and solve problems. Games are extremely diverse, more than movies or any other digital medium, and part of the problem is that we don't have a special word for the "proper" games that in my opinion make you smarter.