It is not for the government to determine what is realistic, it is for the GM to determine that. The GM (four of them, actually) has made his decision. Why are we responding to problems that have not arisen and show no evidence of arising?
Well, I hardly think that it is reasonable to expect the government to just hand over sovereignty to the GM. The government, and in fact any private citizen whatsoever, has the right to give an opinion that something would be likely.
We haven't handed over sovereignty, as we retain the rght to make any decisions we wish in making our policy. However, I do think we should take the actual outcomes into consideration, and not simply make decisions based on what a few people think the outcome should have been.