Just a hunch, but I'm thinking that setup is for checking out the game on multiple style of monitors and displays. That was something I learned in school at AIPX. You always check your work on a variety of medium, especially when its a widely distributed item. This holds true even more when its something viewed on a monitor/Tv. Like, making a website. Its good to try to load and examine the page on IE, Mozilla, Safari.....just to see how each of them handle the page. Could be the same thing they're doing there. If you look, every set is different, with varying sizes, types, and aspects. Just my guess, but I'd say they're just checking their work.
Hilg