Can you explain why mentioning the birth names of Archie Leach, Robert Zimmerman, James Henry Miller, Ethel Gumm and Charles Hardin Holley can be construed as "small-minded spite and in-fighting that has often made the revival the unpleasant place it has become"?

The two birth names that I mentioned were given in the context of recording royalty contracts and I imagine that those were the names that - legally - were likely to appear on those contracts. When my wife is asked to sign any document with "Christine Margaret" as the forenames, she has to pause before she signs it and realises that it refers to her because she has been "Tina" since she was a baby.