No one has said that you did,
Which is why I said I was surprised that he didn’t research things a little more thoroughly. Explaining idioms and common phrases does not appear to be one of his strengths based on that article.
Yes, however he is mistaken, as demonstrated by so many other sources.
It has a bearing because it demonstrates that this is not a ‘one off’ error. In that article he explains the origins of two phrases. Neither are reliably explained.
To me, that is sad as it indicates a closed, rigid mind.
At least others know better
Ah, that is so much better than an uncommon acronym. You’re welcome.