I was going to make this it's own comment, but it fits well as a reply here.
I don't agree with this. I don't think he needs to play them, but the argument doesn't make sense. Would he say the same if it were a movie? I'm willing to bet not. He just doesn't want to play the games, and that's fine. The bullshit excuse of "not wanting to believe the world" is stupid. If you're making a movie set in a larger cinematic universe you don't get to act noble about refusing to engage in the rest of the media. It being a video game doesn't change anything.