This is news to me.
I know that Rohrbaugh has had discussions with several holster makers, including Ron.
But, where did you see on Ron's board any mention of an exclusive agreement?
Where you may be confused is (1) NAA has begun to carry several of Ron's holsters and have at least two more models to feature. Ron agreed not to sell any NAA holster directly that is marketed by NAA. (2) There was a post where a person wanted a Kentucky, a front pocket holster, in an exotic leather, for a Rohrbaugh and Ron replied that he had several in the works, but that in the future if Rohrbaugh carries the holster that he would then not sell the holster direct.
It makes sense to me that Rohrbaugh would be interested in Ron's products, especially his exotics, which is his high-end signature line. But nowhere is there any post that claims that Rohrbaugh would exclusively sell his products for their products.
Now, since I'm a big, big Ron Graham fan, I would think it would be great to have an exclusive relationship (hell, I already own 40 of Ron's products, with two orders still pending), but I think that could only be a dream....