Nice, very interesting article - and a lot better researched than many of the 'anti-gaming' research papers you can find out there, too!
This actually clicked with me, as well, as I went through a period of my life a couple of years back wher I was massively depressed. I had just split up with my girlfriend of two years, as she was a manic depressive who had attempted suicide many times, and I couldn't deal with the emotional weight of it - I was only eighteen, after all, and due to this I was feeling constantly depressed and didn't want to do anything. I very nearly dropped out of school, only just scraped a couple of Ds on my coursework (I had previously been a straight-A student), and honestly couldn't see the point of anything.
Then one of the women that I worked with mentioned that her son had been playing Guitar Hero recently, and did I know anything about it? Being something of a musician and games nerd myself, I had been meaning to get it for a while, but never bought it. She lent me her son's version, and I immediately feel into it, playing it for hours on end pretty much daily. Suddenly, everything felt a lot... less. I was cheering up, I managed to pull my grades back up in time for exams, and generally was feeling much better about myself. Nowadays, if I ever feel low, or things are getting me down, I boot up Rock Band and play the hell out of some songs for a while and nothing affects me quite as much.
While games may not work for everyone, and you'd definitely need to find the right game for the right person, their effects as both an emotional and physical analgesic can be fantastic. This is definitely something that needs to be looked into on a grander scale.