I certainly do not wish to argue the announcement theories but I think differently having been involved to some degree in that investigation personally. I do believe they are fabricated. But in either case it is not conclusive of anything without records of back up.
If someone comes up with a paper copy of one of those newspapers which shows that notice isn't in there, then I will of course re-evaluate my thinking on this. It is my understanding that someone is offering a reward for such now.
I just don't think the number of people who would have to be relied on to pull such a "planting" stunt off, could be trusted to keep their mouths shut. One leak or mistake and it would catch the lot of them. The Risk/Reward just doesn't make sense. It's not impossible, but to my understanding of human nature it seems improbable.