Wow, I am surprised you put all " Black people" as culturally the same. Black people have many different cultures, styles, and ways of expressing themselves just like White, Brown etc.All I know is Dawn has brought South Carolina from the bottom of the SEC both performance-wise and attendance-wise to the top in the nation in both, so whatever she is doing, it is clearly working.
While I'm not directly accusing anyone here of anything, it's not uncommon for white people who have perhaps not been exposed more than extremely superficially to Black people/culture, to misunderstand Black people's methods of communicating, motivating and celebrating as somehow being, well, just TOO TOO MUCH. Instead of embracing the differences in style in building themselves and their circles up, a lot of folks who don't know and love a lot of Black people somehow find them offensive. And it's really just a cultural difference of style -- no biggie. But a lot of white peeps sure get bent out of shape over it. I'm not one of those.