God had over 1300 pages (depending on the translation you use) to set the record straight about the pronunciation of his name, and many other things that people argue over endlessly, yet he left it open for different expressions and that is where we are 2000 years later.
Could it be that he actually does not care whether anyone pronounces it correctly? Maybe it is so complex that he doesn't expect us to be able to pronounce it. I don't claim to know. However, the Greek Scriptures don't contain it in any of the oldest manuscripts known - is that an indication of something? We are not perplexed about Yeshua (Jesus). Just my 2 cents...