Brendan, I appreciate the praise from a professional wordsmith!
No apology from you is necessary. Your initial contribution of the side-by-side analysis of the two documents has led to what has been an engaging and enlightening discussion, and for that we should thank you.
Thanks also to both you and Albert Haim for your insight and contributions to our understanding of copyright, plagiarism, and the particular personalities and circumstances around the publication of that controversial article.
It's good to know what we don't know, unsatisfying as that may be.