No I don’t think you’re going too far. I think that’s a legitimate criticism. Even though he’s only trying to “speak their language”, it could easily be called “stooping to their level” as well.
And while it’s probably not a far stretch to say a cut in the tax rate was a direct causal factor in increased revenues, it is definitely a fallacy to automatically attribute a drop in unemplyment (over a decade, no less) to deceased tax rates. And not only that, the notion that Reagan “cut taxes” is a farce in itself.
Yeah it was a perfect article up until that point.