I just made a new word, it's spelled 'asdfadsehjkfdas' and pronounced like apple. Grammar means everything when naming words, if the creator is so stupid to not add an 'e' to the name, that's their fault. If they wanted people to pronounce it jif, they should have spelled it correctly
Many other acronyms that are pronounced instead of spelled are not said with the sounds of the initials of the words that they represent. For example, LASER, Light Amplification by Stimulated Emission of Radiation, is not pronounced "lasēr" (IPA).