Everything I've read makes me think that a scam is obvious only to those not taken in and those who get the benefit of reading a news story.
This particular scam is a relatively minor variation on the "bank examiner" scam that has been successfully operating pretty much since the invention of banking. With the right play, even people familiar with the scam can be taken in.
My favourite was a report that showed a percentage increase in profit that was higher than the percentage increase in revenue. Is that not the very definition of "higher margin?"