@oristarA,
Your answer is correct, but the WHICH IS TO SAY, NOT VERY., is not a complete sentence. The rest of the article appears ok. So, the author of this article forgot to complete the sentence. It's possible that many did not reply due to the fact that young people, especially high school students in the U.S. are making up so many idioms. Honestly I hesistated myself, wonder if the youth started this idiom.
If I were you, I would skip that and go on.