Apparently the documentary was made before Haggard's fall. He was Pelosi's "tour guide" in her film which features several evangelicals. It had to be edited after he was exposed.
http://www.evangelicalright.com/2007/01/hbo_documentary_on_evangelical.html
My point is this: You're content to base your judgment on assumption and prejudice. They sound very much like the liberal, atheistic blogs concerning him and his situation. Unfortunately this doesn't argue well for your discernment or credibility.
Faced solely with the information in the article cited in the OP, you add your assumptions and prejudices and conclude that he is an unscrupulous profiteer (ignoring the fact that documentary producers generally do not pay their interviewees—unless they want their credibility questioned up front.)
I go on the the information presented and say, God bless him for being honest about his affections and holding to the truth that homosexuality is ungodly. And honestly, I think that's the reason Magnetic Poles is decrying him. (Men can go to the Men's Private Forum to see Poles' views on homosexuality.)