A writer who thinks as above is a leftist anti-capitalist who thinks that there are people like Greenspan who control the economy on behalf of a select group (oligarchy) of manipulative capitalists who are running everything. He lost credibility with me when I read that sentence.
There are some valid points in the article, but there are also several fallacies. I would take it with the proverbial grain of salt.
Remember, he's evil not stupid. Politicians thrive on disaster they need to make sure the IQ-100's interpret disasters "correctly". Done properly this can result in political power. For instance, FDR.