The last game I was there, we had a big family sitting behind us with multiple kids. When they were in their seats, nobody was louder. Unfortunately, it was on the visitor side, which was right in the sun. Insanely hot, and I'm from Phoenix, but I even found myself lingering a bit longer than I normally would when inside grabbing a drink. They had to bring their kids in multiple times throughout the game. Everybody in that section was getting up to go in to get a break from it. Overall, it was a full section, but if you saw it at some points on the ole TV set, it looked empty. Hell, I have a picture of d-day and I in which the section looks completely empty, despite the fact that it wasn't.
There is a very good reason for wanting to put a canopy or whatever it is over the stadium. When we met with Garfinkel ("met," we were in an auditorium and were able to fire off questions at him. Funny guy.), he was very aware of the factors that kept people in the stadium rather than in their seats and aimed to address it. A good sign at least. I actually think they've invested too much in the interior of the stadium, and that started before Ross.