I agree, very well written and full of detail, but with no shred of evidence, it’s just a theory.
The credibility of the author should never be taken for granted, especially with stories of this sensitive nature. The veracity also depends on an anonymous source, which will likely never be revealed nor verified or verifiable.
I think the danger here is that many people will take the author’s credibility for granted and will be influenced to take some action based on their belief.
I guess that’s okay, but it feels like people ought to come to the conclusion that this is nothing more than an interesting theory, then move on.