Investment banks structure financial products for clients every day that provide a benefit to the client and the bank as a counterparty, often taking advantage of regulatory or tax arbitrage or less ethically as the article explains, "smoothing" earnings. That's their business and it's news to no one except apparently you. It doesn't mean there's some leprechaun forest where you can set up risk-free forwards that you sprinkle with unicorn blood to magically make money for everyone.
To be fair, the fact that DoucheBank was able to get away with the sort of blatant skullduggery described in the article on such a grand scale was mildly newsworthy, IMHO.
For sure, I found it an interesting read. My point was directed at DeltaRisk who seems to be, naive, shall we say?