Back in high school, it wasn't unusual for the administration to occasionally hold pep rallies in support of the school's sports teams.
Although some kids were seriously invested in how well these teams did, others rolled their eyes and just sat through it because it was better than being in class. But when those rallies were held, we generally knew what to expect.
Although the break in student-athletic tradition we're about to discuss today occurred at one of the actual football games and not a rally, attendants found the display about as surprising as if it was during a school-sponsored assembly.
And that seems to be a big part of the resulting controversy.