Why do you think the piece was bad? They addressed potential positives and negatives of bitcoins, and stated that Bitcoins may "do for banking what the internet did for publishing." Some innacuracies, but that is to be expected. If you ever read or hear a news story about something you know about, you realize they get about 65-75% of the information accurate usually, so NPR did a decent job in my opinion.
They didn't say much besides "There is no record of transactions" and that's false. So it kind of sucked.