I thought that rifling developed because of the "science" and experience that arrow makers had learned about the flight patterns of arrows and how this was affected by the feather positions on the shaft. So rifling applied similar dynamics to ball trajectory.
Some of the earliest rifling was fast twist too, only the balls didn't shoot consistently well, and it took more "eons" before conical bullet development could catch up to the existing barrel technology.
Most open choke smoothbores shoot like rifles out to 50 -60 yards, but then anything can happen to the trajectory depending on all of the variables. I have one modified choke .28 bore shottie that shoots great out to 25 or 30 yards, but at 50 yards I'm lucky to hit a large 100 yard target. But that's the nature of having a choked smoothbore, it's usually made to either shoot shot or patched balls well. But it's still a blast to knock down bowling pins with it, I just have to shoot it at moderate range if I want it to be as accurate as a rifle. Using ~.020 looser balls, thicker (.018) patches and moderate powder charges, there's really no need to swab either. But the really accurate long range smoothbore loads are required to be so tight that swabbing between most shots really does become necessary.