.
It's always about selling you something new - $$$$$ "the all mighty buck", whether it works or not. Some are always looking for something new instead of staying with what they know works...... .
This design will replace the horrible loading hornady FPB. Very similar to a powerbelt, only, harder alloy that holds ( or should ) together better than a powerbelt. 20 bore drivers vs 15 powerbelts and probably less $$ too.