As someone from the south, I can tell you that's not a fake accent. I think maybe you're overreacting. Note how she said "when she rebuilt" she told her about DirecTV. You make it out like that was the first thing this woman told her friend hours after her house was destroyed.
Real customer and she is from the South. It was her story, that's how those are filmed. Honestly, I don't remember even seeing that one run and it looks like it was months ago, but the customers are filmed in their own voice with their own story on how the referred a friend.