That's the thing, though--who are these gatekeepers he's imagining? Game studies are growing rapidly in academia. So-called "elite" media (which is, let's face it, much cheaper to consume than the games themselves) don't necessarily exclude games anymore. The New Yorker runs articles about games, for instance.
But it's silly to act as if dislike of games never has anything to do with quality. A lot of games, even now, have stilted dialogue, poorly-considered plots, inept voice acting. They're bad _as games_, and this applies even to many of the widely-praised ones. It's counterproductive to act as if lack of coverage for games has nothing to do with this.
Many people like Thomas Kinkade. Many people like hundred-hour long video games with badly-dubbed dialogue, repetitive battles, and lots of bugs. People should be allowed to like what they like, but that road goes both ways. Critics aren't obligated to pretend they enjoy things that actually make them miserable, just because that's what people are buying.