I raised this with a couple of senior staff at the Fortnum & Mason GGL event a few months ago and all agreed the inconsistent use of the Concorde tag was confusing.
Evidently, the view has been taken that sufficient numbers of CCRs travel through IAD and BOS, not in F, and that it would risk their having insufficient seats at the tables if we were all let in. So change the name I said. All agreed that would be better as it would save everyone's blushes.
That may be more likely to happen that an expansion of the eligibility criteria.