Well, it wouldn't have to actually be attached, but closer. My thought was that the height may have to do with damage on extra points/field goals, because there have definitely been balls kicked on top of the Jacobsen, so maybe that was the factor.I'm pretty sure that they didn't want it to be attached or appear to be attached to the Jacobson because of structural reasons. I'm sure that the board will sway slightly and be able to handle it, but if it was attached to the Jacobson it wouldn't be allowed to sway the way it's supposed to and might have major problems. Also it might have to do with the sound also. If the speakers were too close to the metal roof of the Jacobson the sound might bounce off of it and make a crappy sound. I'm sure they put a lot of work into making it sturdy and having great sound as they are professionals.
Either way, this thing is going to be sick and I can't wait for football!