Just browsed the article, and I am nowhere near being an expert on the subject. I think that reform is certainly in order. The methods used for subsidy seem outdated.
I also personally know some very wealthy farmers who benefit. However, most of their wealth and net worth has much more to do with real estate than it does with profits from farming. Farms in and around growing communities are gold mines for developers.
One must also consider that the industry is a risk rewards business due to mother nature. In short, reform is necessary to a point, but I would have no idea where to start.