It has less lateral tension of the die on the cartridge at max extension (end point of case sizing or boolit seating).
The design concept is different than most single stage presses. It's an in-line press. Instead of relying on a strong metal frame to try to keep things aligned, it lets the die float and align itself with the shell.
For typical C or O presses, they may start out aligned (or not), but the more you crank down on the handle, the more they flex up and out. But accurate ammo can be loaded, by batching brass, using consistent handle pressure, and indexing the die's eccentricity versus the presses' eccentricity.