Just because somebody who made a word wants to pronounce it a certain way doesn’t mean that’s others will pronounce it.
Heck, look at the at history of the word tomato. Came from the native Nahuatl word tomatl, which was changed to tomate for Spanish and then tomato for English. The British are closer to both the native Nahuatl and Spanish pronunciations of the word but few Americans will say it as “tuh-maa-tow”.