Having read both the NYT article and Hadley's, I can see why on a superficial level you'd think Hadley guilty of "churnalism" on this one. However, I think the NYT article was played with a straight bat - interview the man, quote him, draw attention to inconsistencies (the tension between freedom of speech, self-reliance and individual freedom of action as twin rights/responsibilities, versus enforced or socially heavily encouraged monogamy). Hadley's column, on the other hand, is meant to be satirical - so rather than merely draw attention to the internal inconsistencies and leave the reader to draw their own conclusions, she makes fun of them. Which is a fine and honourable tradition in political journalism and writing going all the way back to... well, whenever, really. Swift, Voltaire, Martial, Euripides. All satirise politics and intellectuals who think they've found the key to understanding the universe (it is impossible to read Leibniz's Monadology with a straight face, for instance, if you've read Candide first).
Leaving aside the obvious immorality of coercing people to be in enforced monogamous relationships (which, given his comments on Betty Friedan, I read as a desire to hold women captive in stultifying marriages which are not working for them), the issue of monogamy and social order seems to me to put the cart before the horse. Has he never heard the phrase "correlation is not causation?" I'd hazard a guess (am a physical scientist rather than an anthropologist, so I'd be very interested to hear from any anthropologists on this one) that levels of violence probably correlate most strongly with inequality - and polygamy might well be a consequence of inequality too. I.e. rather than polygamy driving violence, inequality drives both violence and polygamy as a social structure.