Can't answer that one, Michael. Going to a heavier, longer pull is going in the wrong direction. IMO, it's an attempt to upgrade the hardware to compensate for lack of training, and even lack of reasonably competent personnel. But it's hard to make things foolproof, fools are so %&*@#$%^& ingenious.
This travesty is a "Lawyer's Trigger". When guns are designed by anyone other than engineers and users, they get worse, not better.
( Dismounting from soapbox)...