My take, for what it's worth, is that G-d works in mysterious ways. She spoke from the heart and it showed, especially in the beginning when she had to grab the audience's attention.
Yes, good on her to overcome that, but she was in her comfort zone, speaking from the heart and speaking directly too all of us out in TV land, rather than jerking back and forth between those 160-degree apart teleprompters—like too many speakers have done.