In particular I wonder what he thinks would be best for his own kids. He seems to be, per wikipedia, married to a high-school friend (sweetheart?) for almost a decade with two kids.
While I do not think his personal actions have any bearing on the accuracy of his statistical critiques of the author, it does seem like his revealed preferences support the author’s points of view. I would be shocked if he believes the health of his marriage has no bearing on the overall wellbeing of his kids.
Regardless, I wish him and his wife a long and happy marriage, because I believe that would be the best outcome for both of them and their kids.