This is about indoors.
Yes, it’s about indoors, hence my point: at distances where shotgun spread is enough to be relevant, you’re outdoors. Shot spread is only useful on delicate targets like birds; as we’ve seen, it has little effect even on lawyers.
The one good thing about a shotgun indoors is its the closest thing to a wieldable cannon, making a ragged three-quarter-inch hole - with the added benefit of little subsequent penetration.