Become popular? It’s been popular roughly for the lifespan of the format.
I’m gonna stop you there, because I’ve been using the format for about 30 years, and people only started using the new pronunciation in the last 10-15.
Everything you said about linguistics is entirely crap. English is not a proscriptive language. English linguistics doesn’t indicate anything at all. It is descriptive, and is anything but consistent. There are no rules about word construction or pronunciation. Words are pronounced the way they are understood, and if you are understood then you have pronounced them correctly.
You could argue that the original pronunciation is archaic, like “encyclopaedia,” but the problem there is that the word itself is like 35 years old, and there are people like me who have been using the word since there was only one acceptable pronunciation who aren’t likely to change.