Description of your improvement: Increase the drop rate of the fragments/boxes, as well as the chance for weapons. Or, allow a system to trade in so many for your desired weapon.
Why are you suggesting it? (What does it solve for?) This would help people get more chances quicker for the item, or to get the one they want. As this is not an area people revisit a lot, it would allow them to be able to get what they want to progress into farming other places that will be visited more frequently.
_How it currently exists today: _ On Classic, it took me about 10 hours to collect 23 boxes yesteday (including kill quests for opened ones/nucleus) and getting 3 weapons, all which no one uses. Took another 8 hours today for 14 boxes, including killquests, and getting another item no one will use.
So being able to trade in, or get more chances for the item to hopefully never return would allow new players to get at least a weapon to make leveling/farming smoother as they climb up the tiers of progression.