Well, I wouldn't say no one gives a rip, but I agree with you on the stadium issue 100%.
For as incredible as the games and the players are, it puts out a bad look on television screens when the empty seats serve as backdrops to many camera angles.
I've in the recent past emailed the PAC12 Network regarding this issue as well, because most of their broadcasts have the cameras rooted on the side of the field where the crowd is, and shoot the game in a way that implies there are very few in attendance because we are seeing the opposite side -- it's not a wise way to sell the game to the casual viewer flipping thru channels (broadcasts at Oregon, Stanford, Washington as specific examples)
Clearly they've yet to agree with my suggestion
As far as college cup goes, it's a treat for the teams to use these big facilities and I'm assuming it's done so in part for scheduling as well? If you held higher-seed home advantage all the way thru the final, I assume there are many scheduling and logistical issues for national broadcast that come into play.
That being said, if the college cup games continue in these big arenas, which they are slated to do, there's got to be a better way to fuel local attendance, and a better way to get the sense of the crowd actually in attendance via better camera work.
Congratulations to both UCLA and Stanford on amazing seasons.
It's not easy getting to where they got.