To me, the middle ground is as plain as the nose on Pinocchio's face. Irregularities should be checked by CMs at the point of FP entry and fixed then and there. This whole passing of the buck by directing guests to Guest Relations is infuriating nonsense. This is clearly being done for two reasons.
1. Disney anticipates that only a small percentage of guests will actually do that, so the problem essentially resolves itself by disappearing due to inconvenience; and
2. Lack of personnel at the attractions. (And lack of technical training as wilkeliza points out.)
#1 is unconscionable and a clear slippage in customer service. One can book a FP for Buzz right there at the kiosks by the ride, walk 10 feet to try to use it, get a Blue Mickey, and then have to walk all the way to Town Square to resolve the problem. Does that make sense to anyone?
#2 can be fixed by hiring more CMs or redeploying those already hired. But the whole point to the move toward automation is to cut the workforce. Can't lay people off and hire people to assist guests at the same time.