The Facilitated Concensus form of meeting may be popular because American radical tradition is significantly anarchist. The novelty of the form is some of its appeal. Actually, contrast with "democratic centralism" is too narrow. "Democratic centralism" is the same thing as "majority rule" or sort of "vulgar" democracy. Lenin used the term , but he was in a country that had a history of autocracy, not majority rule. So, he was spelling it out and using a fancy term to explain to people who were not used to being in meetings where Roberts rules were followed , which means votes with majority rule. That the minority abides by the decisions of the majority - democratic centralism- is the same thing, identical to, majority rule, no ?
Roberts Rules of Order is more fully what Facilited Consensus replaces, because the GA meetings are still on the scale of meetings customarily run by Roberts'.
Charle