This is really good analytical research about the whitepapers.
There are indeed 2 possibilities here (IMO): It was a genuine mistake from the CN website (not really 100%, on this one) or it was a malicious act to try discredit the technology itself. Lets not forget that when competitors consider you a threat and to their own interests, they will go in all lengths to discredit you.
But do BCN devs not also refer to the CN website? It would be strange for damaging material to be posted in that place.
Since some time has passed since the publication of the original analysis in this thread, the possibility of a "corrected" backdated whitepaper being posted on one or both of these sites should not be discounted.