Video games are for breaks
This is my problem. When I get invested in a game, that's where all my free time goes. I have a hard time "timing myself" and don't really have the self-control to use "videogames as a motivator" to help me stay productive.
I get the point of your article, and I'm sure it's true for a lot of people, but for me, games are such a time sink. I haven't played anything in the last 2 months and I've been more productive than ever!