I think some people need to understand that the aspect ratio must be the same, therefore each half can't use their entire sections, otherwise they would be too wide.
As far as them not being centered, I can understand the reasoning behind that. Chances are one player will be on the left, the other on the right. This makes it a little easier to see. Still, it would be nice to have the option of centering them and turning off the emblems, because, like what others have said, they're pretty distracting.