Last comment: this has long ago passed the point of diminishing returns.
I originally wrote "intellectually dishonest" mostly out of habit. It's a phrase I like. But then I looked at it and realized that was way too harsh of a statement. Buffett is not lying here. He's just a nice old man (probably a little on the cranky side) who wants to play at politics a bit.
I don't think there was any subterfuge or lying at all going on. What I think is that he could have used a good editor, but probably when you are worth 3 kazillion dollars it's tough to get somebody to take you out to the woodshed and tell you to tighten up your piece, make a thesis, and then support it. I have structural problems with the article, not concerns about the honesty of the author.
Much more interesting to discuss that than how clear Buffett's argument is. (Which is quite clear, in my opinion.)