Although I have not seen Andy live since he became a SG2 ref, I must admit I share your thoughts nemesis. Andy is (I think) third oldest on the list and has spent a sizeable chunk of time out of action, presumably because of injury. With that in mind, I don't think he should be refereeing on the Championship, and I certainly don't believe that he should be given Championship games simply because he is SG2. I don't know what the answer is, but I would hope that, like the other postie Brendan Malone, Andy will realise his time is up and retire gracefully at the end of the season.
PS Is Andy a postie? I thought he was a gas man, or am I thinking of that other icon of north of London refereeing, Mick Russell?