I was in jacksonville last week too, and it felt far hotter in charlotte yesterday in the sunny side of the lower bowl where it was direct sun for the entire game. I got back to my seat late after halftime because lines for most concession areas were crazy, and a few places were out of water. Overall the heat combined with the length of the game had a lot to do with the less than stellar noise. Still saw the crowd on the last two drives on defense really into it.
Don't get me wrong I agree with most of what you are saying but to name just a few "very good" receivers who have won a SB since Jerry Rice: Julian edelman Anquan Boldin Torrey Smith Victor Cruz Hakeem Nicks (pre injury) Greg Jennings Jordy Nelson Marques Colston Santonio Holmes Plaxico burress Reggie Wayne Pierre Garcon Hines Ward Torry Holt Isaac Bruce Rod Smith