I suppose you pronounce jpeg as “j-fey-g” too, then, since the P stands for “Photographic”?
Or perhaps you argue that to doesn’t count since it’s on the P and not the Ph included in the acronym. In which case I guess we’re just abandoning all connection to the root words and we’re back to the fact that it’s okay to pronounce it “jif”.
Also the creator pronounces it jif because he was goofing on Jif peanut butter and wanted a “choosy devs choose GIF” joke. So I’m going with that.
Doesn't it hurt your point that we don't pronounce giraffe with a 'z' anymore? Pronunciations change, ultimately as long as people understand what I mean when I say "jif" it's fine.