sir82,
They may not be in it for the numbers, but they certainly have relaxed other "understandings" to improve numbers before. Examples would be the change to allow alternative civil service, allowing blood fractions, even reducing hour requirements for pioneers and aux pioneers. The civil service change was probably due to pressure from governments or to gain acceptance as a recognized religion in some countries. The blood change was probably also to stem the tide of those that required medication and inoculations that were derived from blood. The reduction of hours allowed them to retain more pioneers in an increasingly expensive world and to gain more as well.
I think it's entirely within the realm of possibility that one of the GB may push for a new "understanding" at some point if governments start to find fault with the shunning policy or if it's a barrier or becomes a barrier to acceptance as a religion in certain countries.
timelord