If someone tells you that George Bush is not the 43rd president of the United States, they might be engaged in wishful thinking, or denial, but if they make that claim, it's either true or false! And you can assess that, regardless of whether there's an omniscient narrator, or an unreliable narrator, or it's shot in vérité, or it's manipulated, it's agitprop, whatever! It makes no difference! It's a style!
You can ask yourself, if a film makes a claim, is the claim true or false? Having said that, a style of presenting material doesn't guarantee truth. There's this crazy idea that somehow you pick a style, and by virtue of picking the style, you've provided something that is more truthful. It's as if you imagine that changing the font on a sentence you write makes it more truthful.
It's a kind of honour when I see how many people are imitating the style of how I make films.