Of course there is something "more" to the story - a pretty simple more if you ask me. She just lost the game and was no longer undefeated in the SEC. And only the 2nd loss of the season. To an obviously lesser team. She was undoubtedly in a very bad move.
And I saw the same reaction in the opposing coach at Arizona's senior day a year or 2 ago, and also the time that the coach called a time-out to avoid a 10 second back-court as the clock was running out at the end of the game. It happens when coaches are major competitors. In the 2 instances I saw, they realized what was going on fairly quickly, but in both cases, not at first.
And I'll add that I've heard Dawn's language is, um, salty. I've heard it said about Geno and I know Vivian has been caught on TV using a variety of choice 4 letter words (well, at least 2 of them). Doesn't shock me.