If A24 / Nathan Fielder promoted this "documentary" like Ali-G / Sasha Baron Kohen's works, they would be honest about it.

Kohen lampoons subjects in candid videos but at least presents his works as a joke, and we're all in on it.

This movie is the exact same thing, but it's promoted as an inside & sincere look at Holmes, when it's really just the Ali G schtick.