I don't think it's a big deal or really any kind of "rebuttal to paleo" at all. He sums it all up like this:
Aside from that minor quibble I have with some of these paleo programs being too strict with their no grains/starches dictum, I do think that most of the intentions behind the "paleolithic" eating concept are in the right place.
So there's a little debate on the role of some foods vs. others, but there is consensus against modern processed junk. We have more common ground than differences. I don't find him to be "an idiot" as some here have described him. In fact, he offers his views in a manner which is quite open and constructive. I find him to be more ally than adversary. The standard American diet is dreadful. His approach is a bit different than Primal/Paleo, but would still be a HUGE improvement for 95% of our population. We're better off as a whole welcoming and working with such critics.
Life is short: Void the warranty.