There is rarely anything to do with protecting the past in these decisions. It is all to do with the present and either manufacturing an image of a previous decision or covering up corruption or incompetence on the part of the party, faction or individual that happens to be in charge at the time. What Proposition so cheerily describes as ‘grubby minutiae’ would be more generally referred to as ‘facts’, proposition seems to think that history shouldn’t let these ‘grubby minutiae’ get in the way of a good story. If proposition is correct in its view that “It would be impossible to change those results” then there is no reason why historians should not be free to investigate and reinterpret the record as to how these results were arrived at.