Quoting the article:

   "I use the word 'theocratic' deliberately, since like theocrats in every domain, some in the sustainability space believe that they own the high ground on virtue, and view dissent as almost sacrilegious."

I wish the author would have skipped the reference to "theocrats". Any strongly-held belief (including the authors) could be described as a sort of religion. Using "theocrat" adds an aggressive tone that distracts from the message of the article.