I agree with you completely, but I have lost exactly that argument (no single controlling DIR body) on numerous occasions where GUE and DIR have gotten convoluted by people whose DIR training and experince has been from GUE.This whole thread (especially with the GUE tangent) has a few widely-spread misconceptions. There is really no "DIR" inner circle actively promoting what DIR is and is not, and there's no governing body or organization managing it.
GUE has effectively deprecated its use of the term DIR (JJ wrote an interesting article about it--"Toward a New and Unique Future", Quest Summer 2004), and is instead promoting a "GUE standard" independent of DIR. UTD (another agency teaching DIR principles) is more or less avoiding the term as well.
DIR isn't set in stone; it's evolving on its own, and arguably splintering a bit regionally and over new procedures and technology. I think there's a fairly solid core, but it starts getting fuzzy the more closely you look at the details. It's just not as centralized as a lot of people think it is.
Believe it or not this response represents a quantumn leap in evolution as it is at least acknowleding that the basic DIR approach needs some tweaks in some environments.Now...here's the kicker. Most of the main tenants and procedures of DIR ( Gas Usage, gas switching for example) do not change, but some minor details get debated and or implemented differently in different regions.