It honestly wouldn't surprise me if it's actually set in a more anime-style world, and that the "real" looking one in the trailer is imaginery or something.
Lock the FPS to below the lowest point where it lags, and suddenly it wont feel as bad since it's consistent.
EDIT: I completley skipped over that you used Fallout 4 as an example. That engine tied game speed and physics to fps last time I played. So unless you mod the game, things will literally move "slower" as the fps drops.
In general, no. Historically and in the vast majority of cases it is done as a show of respect, to honor someone or something. It's done for things like dignitaries visiting, big events, funerals, etc.. For example, Viggo Mortensen was very close with the stunt team on Lord of the Rings, and they performed one for him after he filmed his last scene.
The Ka Mate haka(which is the one the polticians did), was popularized by the New Zealand national rugby team. And, is from what I remember a retelling of a story. Honoring someone who won by outwitting his enemies. It's was never originally intended to be "intimidating" in terms of the vocalization and movement.
Based on some quick online reading, it seems like this is a common issue. Where people plant them in direct sunlight since the grown versions have no problem with that, but the saplings need at least some shade to survive.
That's how modern businesses people think though: As long as their department has green numbers, they literally don't care if their actions cause the company a a whole to collapse. And these guys are trying to run a country like a business.
Investor? He's one of the founders and the one who came up with the name(he's obsessed with Lord of the Rings, other companies of his include Lembas, Mithril, Rivendell, Arda, etc.)
It honestly wouldn't surprise me if it's actually set in a more anime-style world, and that the "real" looking one in the trailer is imaginery or something.