The news story was put on Crete a full four hours before the commodity price change was made. That means, without a doubt, 100% if you could see the raised price of the commodity, you could see the news story on Crete. Period, all this, we couldn't find the news because we didn't reload our game is bull... If you could see the price, and therefore sell it for that price, you could see the news story. It is basically impossible for your story to be the truth.
So, I assume you saw the news, saw that it was an event to bring food from Kusari via the FA and Hogosha to Crete, and ignored that. In rp, I say you bribed a food buyer on Crete so he would give you the extra high price. The food buyer has been executed by the way, and the Brotherhood will be getting my money back.