Silver threaded handwraps and cold iron handwraps should have a higher droprate, in DA. That quest is literally the ONLY one in the WHOLE game that drops that kind of items, and not only is one of the MOST boring quests in the whole game (because you can't do it on elite - you have to try on hard/normal, where the orthons don't even get throught my DR) but also has a HORRENDOUS droprate. I have yet to see not only a metal-handwrap, but a whole devil-breaker drop from that quest, and i've ran it 20+ times now.
In short: make silver-threaded handwraps random, world drops (like every other kind of weapon) or improve droprate in DA by 500x-600x times on those specific items.