Right, the second sentence describes a conspiracy theory, and the end of the article dismisses this theory. The person you were replying to concurs with this dismissal, and presents additional evidence.
You are wrong about that. This is the third or fourth time I've seen this dippy nonsense in print, and I wish it did not persist. Its central sin is that it obscures the mundane, industrial-based reasons for the tuning standard's emergence.
> Why do we use A = 440 Hz? (spoiler: no Nazis)