Yeah, it is a good article, but it's written more as a defense, than it is an unbiased view of the law. Another way to put it, the DOJ will argue against every point, including and beginning with the legality of internet poker.
If you want to check the view of the other side, the full indictment is online <http://pokerreviewworld.com/articles/comm_page/1/Complete-Department-of-Justice-Indictment-on-Full-Tilt-Poker-Pokerstars-Absolute-Poker-Released/26/>.
I can't cut and paste, but if you scroll down to p. 34 and count eight, it outlines the fraud charges. As to the other article's point about enriching the payment processors, that's not who they defrauded. By lying about the nature of the transactions, the payment processors defrauded the other banks. Ie. they are alleging a payment processor told my bank (Compass Bank) that it was sending money to some false entity, in reality, it was to a poker site, which is allegedly in violation of the UIGEA.
Certainly, it remains an open question that fraud must have a victim, and whether or not the custodian bank can be a victim in this arrangement. Though, it hurts our case that none of these banks wanted to knowingly process internet gambling transactions.