You can still watch the commentary if you would like. In fact, if you do not want to watch the 2D at all, you don't have to. Still, there will be numerous ways to enjoy the 2D. You can sit there and watch an entire 90 minute game, start to finish (it will only take 60 mins because the match engine runs at 1.5 speed). You can watch highlights as the match progresses, in a similar fashion to the way commentary works in CM3. You will probably also be able to watch part of matches or even entire matches after they are over, so you can go back and review what happened. There might be a couple other things as well...