Accents aren't just determined by where you're from. They're also determined by socioeconomic status, race, gender, education, the accents of your parents and peers, and whatever affectations you may have.
I've lived most of my life in Utah, and I'm pretty open and forgiving when it comes to accents, but the one she's describing still manages to grate on my ears. (It's not just a southern Utah accent, by the way.)