Hmm, I tried to stay away from putting my opinion in this topic for almost 6 months now, but I guess I can't restarin myself any longer
I think the Macallan could have done only 2 things in the situation they are in;
1: Continue the auction, but then put all evidence they have from their 2002 research, and all other information they have concerning the bottles in public, so the buyers could make a descision to buy or not to buy based on what the Macallan has themself.
2: Stop the auction, and wait till proper scientific proof is there to show the bottle are genuine.
Whatever happens from here, the Macallan will have lost a lot of good will from their clients, even when the bottles proof to be genuine in later research. And IMO thats only themself to blame due to poor communication, and lack of responce to customers who have a genuine concern over this otherwise top malt.
Really a shame.