When I was young I never understood the French idea of 'the death of the author'. I found the idea of ignoring the author's intentions in writing a novel, and of ignoring their clarifications regarding the novel, quite absurd. In time, I have found myself more on the side of this idea.
An author can create something, but this does not give them dictates over how it is interpreted by the rest of us. Creation need not imply authority over understanding, nor later insights inspired from a work.
I'm not sure the pronunciation of an acronym for an image format quite fits into the concept of literary criticism, but I can't say that I'll ever be too bothered that the original author has had the misfortune of pronouncing their own format incorrectly.
The problem is people aren't going to look up the "correct" pronunciation. They're just going to say it how ever it seems like it would be said by reading it in their native language. Once enough people do it it's too late to fix.
An interesting related thing is how people pronounce initials. For example NOP ("No" "Awp" or "Nawp" or "Nope" I had a colleague that pronounced RTS as "ritz". What I find interesting with "ritz" is why the "i". Why not "rats" or "ruts" or "rets" or "rots".
In my domain, graphics, there's GLSL which some people say "Glisle" and "WGSL" which some call "Wigsle". But why not "Glasle" or "Glashal" and "Wagsle"/"Washal". Why did they choose "i". "a" makes more sense given that the letters stand for and if you're going to abandon what the letters stand for, still, why "i" and not some other vowel?
This has an explanation! If a short vowel is inserted as a transition between two consonants, there is a strong tendency for the inserted sound to be a more ‘neutral’ vowel, such as the schwa /ə/. But in many English dialects, there has been a merger [0] between the schwa /ə/ and the short ‘i’ sound /ɪ/ — the two sounds are no longer distinguishable by native speakers of those dialects. Thus, what might be pronounced as [ɹəts] sounds very much like ‘ritz’, and ‘GLSL’ becomes [ɡləzl̩], sounding like ‘Glisle’.
[0] https://en.wikipedia.org/wiki/Phonological_history_of_Englis...
[1]: https://www.thoughtco.com/chaos-by-charivarius-gerard-nolst-...
Imagine if someone said “well actually the inventor of the paper clip pronounces it with a soft ‘c’ so it sounds like ‘paper slip’”
This seems so clearly absurd that I don’t even really know how to argue against it.