Uh, I don't want to burst your bubble, but trust me: Dpris knows for sure. I mean, I suppose there could be some conspiracy afoot, but it doesn't seem likely. If he wants to tell you his qualifications to make that statement definitively, he can do so on his terms as opposed to mine, but I trust his word on this.
Now, that isn't to say that the guy is never wrong. I am sure he would be the first to admit a mistake. As far as people that I have personal knowledge of on THR, until proven otherwise, I consider him a top-tier, credible source of information.