In Destiny and most MMOs the loot/equip is just a "tool" to beat the hardest bosses. The goal is to beat the hardest boss on hardest difficult level. In The Division the missions and later the incursions are just a "tool" to get the best gear. Because the goal is to maximize your character.
In a loot-based RPG, you can either have the Quantity Method (Diablo 3, where you pick best loot out of mountains of randomly generated loot, and can re-roll every piece of gear/weapons you find) and Quality (Dark Souls, where gear is scarce, but each piece is most likely to be useful). You can't have neither. Division has neither Quantity nor Quality Loot. Nothing drops, and when it does, it is usually piece of scrap. Why is it a piece of scrap? Because you can't fix HE weapons via re-rolling. So you're slowly driven to the idea that best stuff is crafted, and it is, because you can craft more gear for more chances at decent roll. However, you then also presented with idea that the best best crafted stuff is locked behind 3 HE DivTech crafting mats, things that only spawn one every 2 hours globally and that you have 1 out 3 chances of getting it from every DT chest. And each DT chest is not unique. And everyone knows where they are. So that means no one gets DT unless they farm through the night.