I was hoping some of our much beloved INGO professionals would provide some detailed commentary. They have often been extremely helpful on other legal issues.
With the lack of details about the Carry Guard in action, I'd have a difficult time to try an apples to apples comparison. IMO, if the "insurance" isn't willing to cover ANY WEAPON USED in defense of life / grave bodily harm, then I'd tell them to pound sand.
This is why I seriously looked at CCW Safe and USCCA, then decided on USCCA for my wife and myself.