I agree with your take on it--she was letting them show themselves for what they are.
That said, I rarely watch Greta. She has such a stiff mouth, with a jutting jaw, and an immobile upper lip, she looks like a puppet when she talks. Not to mention I didn't care for her on CNN during the Klaus Von Bulow trial.
Although lately she has gotten some good information out about Terri Schindler Schiavo...
I don't watch her too much. There aren't many other good programs on at that time, so I get stuck with her when I want to watch TV at that time. I find her show somewhat boring because I'm a lawyer. I have to listen to lawyers every day at work, so I certainly don't want to listen to them at home.