Why the comma before "being" in the Congress Version - 4

One may also be able to add that the comma is not serving generalizing being necessary to the security of a free state on a "well regulated" militia but instead it is serving generalizing the absence of dependency of being necessary to the security of a free state on a "well regulated" militia.
Unlike the first generalization above, the second generalization is created with applying the amendment and without being dependent on ignoring or circumventing the limitations of "being".