You're right. About the players, the fans... everything.
You've never been to a game here, I take it? They actually put "Please Do Not Cheer" on the Jumbotron at the AT&T Center". It used to just say, "Do Not Cheer", and the guy who left off the word "Please" got fired.
Sometimes it's so quiet you can hear the championship banners rustling in the rafters, in the breeze from the air conditioners. Our players don't like to be distracted by a lot of noise, and fans are occasionally kicked out of the arena for not turning off their cell phones.
During time outs our cheerleaders come out and do poetry readings - without a microphone. The snack bars turn off all their popcorn makers so that the audience can hear every word.
The Spurs try not to throw down too many dunks, and they prefer to have games under control rather than making game-winning shots in the final seconds. They find all that yelling distasteful and rude.