I hate this bifurcation.
I almost never want 2-hour documentary style videos, yet 1-minute teasers leave me even more dissatisfied.
I want 5-minute to 15-minute videos. They can be either overviews or summaries that cover broad stretches or super focused essays that go deeply in depth on just a singular hyper-focused point.
Long-form typically means opinionated and written for a lay audience. Filled with unnecessary pregnant pauses, fluff, and breathing room. Historians trying to craft a narrative.
Stop wasting your viewer's precious time on b-roll or building a case. Smart audiences will trust you if you're succinct and factual.
So take the heinously verbose documentary format, trim it down to just 10 to 15 minutes, and you're left with a fast-paced, frenetic, fully dehydrated, factual blow-by-blow.
That's the sweet spot. Maximum information density.