@Scoutbob Good that they got with you to dispel any misgivings. I would look at it as you have been given NO SH!t for real Bunker Ammo that will last forever as part of a MILSPEC project.
FWIW Primer sealant has virtually NO impact on the effectiveness or veracity of the round.
When the U.S. Gov’t drops a contract for 100 million rounds of ammo in lets say 5.56 ammo there is a certain weather resistance that is required. For a 100 million rounds they will “crimp” them all. For a smaller contract of say 100 THOUSAND rounds of .357 Sig or 300 WM they will "“glue” the primers to seal them. It is simply a matter of economics and mechanical efficiency