I do a lot of UL hiking and camping. Solo i'm happy to keep my gross loadout around 25lb's including food and water; it's only when my girlfriend comes along, and i'm trying to accomodate her inexperience that my loadout aproaches 50lb's.
However a 25lb backpackers load would easily hit the 50lb mark if you added a rifle and some ammo and a medical kit, crossing over into the "shtf" arena.
My point is that while the MR 3DAP is definitely overkill for ultralight backpacking, it will be right at home in a SHTF, or hunting excursion. The Granitw gear bags will excel at the UL pursuits, but maybe be underwhelming, or even subpar for the task when serious load carrage becomes necesity.
I did a 500 mile Appalachian trail hike, took a month, virginia to New York. The whole thing is 2000 miles and a 3-4 month journey. Many "thru-hikers" I had met, had about 1000 miles of trail down and were either about to retire their starting packs, or would soon be receiving a new replacement. The Osprey, Deuter, REI packs all seemed to blow out around 1000 trail miles or 60 days of rough hiking.
Years later and thousands of miles later my 3DAP is still chugging along.