At first glance, it kind of does. Although it makes you wonder what you'd actually put in this public announcement. Would you simply state the facts (along the lines of "sorry, but X isn't going to be speaking after all.") or would there be more detail (read: speculation) included?
I don't really think there's a way to win this. In the event that you're wrong, it'll blow up. In the event that you're right, it still probably will blow up, depending on whether that person (or their fans) go on the offensive or not.
The only actual winning move is not to have played (only inviting people that you know, doing advanced due diligence on anyone a degree of separation away), but are you really winning if you do that? It would seem to seriously limit your horizons.
I don't really think there's a way to win this. In the event that you're wrong, it'll blow up. In the event that you're right, it still probably will blow up, depending on whether that person (or their fans) go on the offensive or not.
The only actual winning move is not to have played (only inviting people that you know, doing advanced due diligence on anyone a degree of separation away), but are you really winning if you do that? It would seem to seriously limit your horizons.