I'm not going to deny that there's a lot of crappy art out there. However, this article is such bullshit that I suspect the writer is just trolling.
For those who are nodding along with this article, consider the Obfuscated C contest: http://www.ioccc.org/
That's art. But it's art that most people in the world can't begin to appreciate. You need years of coding experience to really get it. You need context. When hackers sit down and study those works of art, they're not just posing.
A lot of modern art is like that. I look and scratch my head. If I go with a friend who understands the context, they can explain to me the history: movement Z is a reaction to Y, which in turn is a reaction to X. The artist is grappling with themes A and B, and exploring materials C, D, and E.
Many of us can do similar analysis with video games. Look at the Upgrade Complete series, which is a fun set of commentary on games at the same time it's a fun game. Look at the rise of the 8-bit look and sound that harks back to an earlier era. To an outsider, the 8-bit stuff could just seem like shitty graphics, but to many insiders it's awesome and nostalgic and charming. That's art.
Of course, Kongregate and GameStop are both full of shitty games. It'd be easy to write an article like this one, condemning all videos games as crap. But I and many other HN readers are willing to wade through the crap because when you find the gems, they're real works of art. Art requiring context to really understand.