Micheal seems to have taken my remarks on this subject poorly and evidently feels that I have made some errors. See his comment on that item.
In the unlikely event that you care enough about this, and in the interest of fairness, I urge you to click the links given in the piece and check the arithmetic yourself.
I suspect that what Michael means by factual errors is "stuff I don't want to hear" since this is the internet. Michael had regrettably declined to provide me with any specifics. Happily, anyone can check my work to see for themselves. It's crowdsourcing!