This conspiracy doesn't make a lot of sense to me. Yes orchestras tune together at a440hz, but over the course of a large complex symphony the strings lose their tune so the end of the song might even sound like it is at 448hz/432hz and all the instruments lose their tune unequally so it will actually be a variety around that. I don't think it makes a noticeable difference to the ear.
This conspiracy doesn't make a lot of sense to me. Yes orchestras tune together at a440hz, but over the course of a large complex symphony the strings lose their tune so the end of the song might even sound like it is at 448hz/432hz and all the instruments lose their tune unequally so it will actually be a variety around that. I don't think it makes a noticeable difference to the ear.