Planet13 - 3:59 pm on Jul 22, 2013 (gmt 0)
Certainly I agree with your hypothesis listed on your EMD site. And I certainly agree that google is like a psycho girl from high school...
On the other hand, I think we have seen instances of EMDs ranking for no reason; I remember not too long ago searching for "widget recipes" and the number three result was widgetrecipes.com which had, soley, a "coming soon" for the home page - and that was it.
Certainly it seems like - all things being equal - EMDs can give you a leg up on the competition. That is with all other things being equal.
Part of that probably ALSO comes from the potential benefit of more exact-match keyword anchor text that EMDs get.