oh ok no problem , it’s also me that might have not connected the dot , no worry there 
indeed for your proposition , if that were to happen , the devs would have to see if it would increase the drop rate too much or not (since they aren’t super unique they might not increase the loot a lot…but runes wise i’am not sure about that really…)
personally, as long as the area are lv 85 and the loot themselves aren’t really increased by a visible margin , it would be great in my opinion