[ycombinete]

Thanks for the references.

At some point between 2006 and 2015, he must have decided that Foucalt was accurate enough on the subject of exercising power in society, to quote him so unquestioningly in this article.

Unless, of course, there's a distinction between the subset of "power" that this article deals with, and those he previously criticised Foucalt on, that make all four passages congruent with each other.