So it sounds like this report is greatly exaggerated.
The jackontheweb report was very accurate. I was there, arriving around 7 PM for an 8 PM movie time. The sound was impossible to hear in the 4th level and tough to hear in the 3rd. Instead of using the stadium sound system, they added their own speakers that were horribly underpowered. Some people stayed in the upper level, but I don’t know why. I moved to a side view spot in the 2nd level and could mostly hear there and could see reasonably well, to follow the movie. I missed about 20 minutes of the movie due to moving around to try to find a spot that was even mediocre. It was an epic fail overall. They could have shown the movie on all screens in the stadium and used the built in sound system and then 85K people could have seen it. Yes, thousands left in the first 15 minutes and thousands more couldn’t possibly have heard the dialogue.
I imagine the sound would be unintelligible in a stadium.