Reinforcing that content worthwhile for higher leveled players while providing content for mid levels?...Hard requirement in the sense that you can't wield the t60 weapon without 85 strength. Mid-levels simply can't use it. Birthright of the Dwarves was a very [bleep]ed up quest Sorry I wasn't aware that you had to finish the quest to use.
It makes good sense. They shouldn't reward you if you didn't finish it completely. That would be similar to giving you a farming cape before you hit 99.
Took advantage of the slayer bonuses and did some Co-op with Link_Olaran, got 89 magic and 88 slayer on the abyssal demon task! No notable drops though.
Just a wild guess but perhaps the new resource dungeon will be the location for elder divination and just a way to make the list sound more impressive.