The .45 Colt/410 shotshell represent low pressure, the .454 Casull stratospheric pressure. Putting the .454 in the same revolver would require much heavier construction, beginning with the cylinder, negating the dubious "compactness" of the Taurus Judge genre.
The Judge and its clones rely on shallow rifling to give the shotshell any chance of not flinging pellets all over the place. The skimpy grooves are unable to bite a big slug, one reason many of these guns keyhole bullets at 15 yards.
If my observations have currency, numerous buyers of Judge type pistols have low familiarity with handguns and might be disoriented after missing with the first shot. On the other hand, yon bandit may be on fire... last seen running for the nearest fire station.
David Bradshaw