The latest blog post from the Gmail team may not fully answer this question, but it does demonstrate a willingness to listen to users and try to fix mistakes... and kudos to them for admitting that they made a mistake.
We quickly realized that we didn't get everything quite right. We're very sorry for the concern we've caused and have been working hard ever since to improve things based on your feedback.
That's about as close to "we screwed up" as you're going to get from a large corporation.
For what it's worth, I see promise in Google Buzz. I haven't yet deleted my profile, and if Google sorts out the issues then I might actually keep using it.