Yeah who knows. If we’ve learned one thing here at FR is that experts are very often wrong.
Simply crowd noise.
Yet in our nation, with 4% of the population, we'll fill multiple of 100K seat stadiums every football Saturday. How many? However many of those 8 teams have a home game that day. I'm sure by chance on some Saturdays it's just 2 or 3 happen to have a home game, but then on other Saturdays it's probably 6 or even 7. On any given Saturday, however many of those 8 teams are playing at home, their stadium sells out. A nation with 4% of the world's population has enough college football fans to regularly fills up that many stadiums, but the entire rest of the world has only enough soccer fans to fill up 3 stadiums that size. And this Bama fan is supposed to believe that they take their soccer seriously? LOL