Hi Chiam,
If what you are saying is true (and I would not dispute it) then this guy is an aetheist. A bit like Peter Hitchens. We do not agree with everything he says, but we agree with most of it. Re: God is not Great-his book.
Ultimately the JTF members (as far as I understand them to be) have a common unifying theme: we believe in one God; the same one we had in the Tanach. No more, no less.
This is what differentiates us from them. They can rant on about muzzie BS-( and I'm glad they do) but they do not have the basic bottom-line faith that we do in our God. All they have is their last meaningful thought and a void to look into.