I do not consider the New South Wales Board of Jewish Education to be the final authority on the meaning of acronym.
The term ‘acronym’ was coined by Bell Labs as “a word created from the first letters of each word in a series of words.”
For that matter, USSR isn’t an acronym either (how would it be pronounced as a word?).
I now understand that you are one of those people who raises a trivial point, and then fights to the death to maintain it.
If you want to make a mountain of a molehill, fine. If you want to reject any authority I cite as somehow being inadequate, fine. I frankly don’t give a damn any more.