Of course, I agree the plot makes no sense and peolpe that liked that movie just don’t want to admit they didn’t get it.

But since we’re talking about it… it didn’t help understanding the plot that it was by far the poorest sound mixing I’ve ever heard. I had to watch it a second time with subtitles on, only to confirm it wasn’t any better when you could understand them.

There's been a trend over the last 15-20 years as the big US movies have internationalized of reducing dialogue complexity to enable localization (once you notice it, the lexicon and grammar complexity in recent-ish Marvel movies especially is crushingly limited). Maybe mixing poorly (and writing a movie with "you won't really hear or understand the dialogue" in mind) is another strategy to hide that.

That, or a cynical mix engineer noticed that the words don't make the movie any better, so they made an editorial decision to cut them a little (plus, everything was clear enough in their carefully calibrated 22.2 Atmos studio).