Did Katie Couric go too far interviewing the Edwards?

I came across the controversy about Katie Couric being out of line when interviewing Elizabeth and John Edwards two days after they found out that Elizabeth Edwards' cancer had returned and was incurable but treatable. Here is a link to the MSNBC story on Katie Couric's untimely interview.
After looking at this story and other video clips from the interview on YouTube, I did feel Katie went a bit too far. I agree with the MSNBC anchor that this was bad journalism on Couric's part. She did use the word "Some people" too many times trying to deflect attention away from the point that these are her own questions. People may be curious too know why John Edwards is still on the campaign, but the way those questions were phrased was outright insensitive. And it does feel like Couric is passing judgement on John Edwards for choosing to stay in the campaign.
Some questions like "Are you terrified you might lose your wife" have obvious answers and asking them, according to me is harsh and needless.