I would tend
to agree with you. But a direct quote from the dictionary says:-

acronym

An identifier formed from some of the letters (often
the initials) of a phrase and used as an abbreviation.


See also TLA.*


* it really refers to TLA in the dictionary.
( Zoot Cadillac . do androids dream of electric sheep?, Fri 12 Aug 2005, 22:20, archived)

yes
it refers to TLA because if you looked up TLA it would help to further define the term--not because it's an acronym itself...
( Sexy Picard 2000, Fri 12 Aug 2005, 22:23, archived)

Aye
No need to convince me. Anyway, arguing semantics on here is as usefull as tits on fish.
( Zoot Cadillac . do androids dream of electric sheep?, Fri 12 Aug 2005, 22:30, archived)

I choose the Oxford dictionary
...which specifies that it's a 'word formed from initial letters', with the examples 'Ernie, laser, Nato, radar, Unesco'.
( Trinosaur, Fri 12 Aug 2005, 22:34, archived)