I do not know if they play ALL realistically, but somehow they play at least different. If I am not misleading somehow the wind factor has to do with it? When you look at the waving banners in some stadiums they seem to stand still, others wave in the direction of the batter, others in direction of the pitcher, etc. But I do not know if this is influencing the game or it is only an animation. But sometimes when you hit a ball you see that it will make strange changes of direction in the air (ball trail on) and that could normally only be caused by wind I assume.