HR egalitarianism in the news once again

Good to see this, of course. But there's no mention in the Guardian piece of the IR/DR distinction. Can't see more than the abstract of the actual article, but the Guardian quotes one of the authors:

"We’d argue it was only with the emergence of agriculture, when people could start to accumulate resources, that inequality emerged."

I hope they don't say that in the text of the article. I mean, I don't think it's just by chance that they picked the Agta and the Mbendjele Bayaka as their egalitarian societies. They're both generally classified as IR. And it's well established that hierarchy (including sexual inequality... see the Endicott article in the PDFs here) didn't begin with agriculture; it began with the emergence of DR societies. It's almost bizarre sometimes how folks seem to actively ignore the distinction.