I've already played the Gameboy version. I understand exactly what you're saying. I think you're the one misunderstanding my point. I was speaking about how people experience games vs movies in general. Focus in movies is meant to draw the eye to specific things at specific times as the director intended. Just making everything outside the center of the screen blurry doesn't serve that purpose. Since we're talking games you want a good reason to do things like obscuring the player's vision, because players need to be able to look wherever they want whenever they want in order to gather information about what's happening and play the game. The part you quoted was just talking about how people play video games on a fundamental level, not specifically with regard to this one.
When I said I know the game's not detailed, I meant I know that in this case it's not going to be the big problem it would be in, like, Spelunky, because the kind of important decision-deciding detail that might wash out in the extreme blurriness doesn't exist in the graphics in the first place. But again, I was speaking generally about the difference between film and video games in terms of the audience/player's reasons and methods in looking at the screen. People don't like looking at something that they need information about to make decisions, only to get a blurry image. Nobody likes it when their swimming goggles fog up. That's not to say a player's vision should never be obscured, but you should generally allow for players to look at everything clearly in a video game so the experience of playing the game is pleasant, unless you have a good reason you're doing it. Other people in subsequent posts have pointed out that they love the miniature look, so I guess that's good enough. Wish it were optional though.