The tapered fit is the reason, and the article outright dismisses this and claims it "increases cam-out". Even with a worn bit, pushing a screw onto the bit mea

The tapered fit is the reason, and the article outright dismisses this and claims it "increases cam-out". Even with a worn bit, pushing a screw onto the bit means you can grab hold of the screw and swing the drill around. In practice, (especially with impact drivers), the bit seats myself in the screw so thoroughly that you will break the head off the screw before it strips.