This may just be arguing semantics, but the 2 quarters of negative growth thing is not an "erroneous" definition. It is the original definition. There is no doubt the economy is struggling; but frankly, they just decided to change the definition to fit these particular circumstances.
I am sure they have their reasons for doing so.
"Founded in 1920, the National Bureau of Economic Research is a private, nonprofit, nonpartisan research organization dedicated to promoting a greater understanding of how the economy works. The NBER is committed to undertaking and disseminating unbiased economic research among public policymakers, business professionals, and the academic community." --from the NBER website, since the CNN article seemed to erroneously define who they were.
Edit: Don't get me wrong, btw, I fully agree the economy is screwed, I just wonder why they are so determined to use that particular word, especially since just the use of it erodes confidence.