The answer is obvious....so when my mom sits down to watch a quarter or so with me she can see the answer to the inevitable question (Is...so-and-so a good team?) Networks don't have the luxury of assuming 99% of the audience knows everything about the sport they're watching. It's getting as much information to the masses as possible. I think some people assume the sports world is active on this forum and networks and schools/teams cater to our desires, wants, and needs.
I rarely watch soccer, but when I do I like to have as much info on the screen for me as possible. My mom might watch 4 football games a year. This info is for her, not me, who spends 12 hours every Sunday (and Saturday) watching football wire to wire.