The lore books (6 in total) from the first to Elite Dungeones were a MQC requirement, and I notice the three book from Shadow Rift (Umbral Diplomacy, The Last offering and Kranon's Ancient Journal) are not. Seems strange to me, is this done on purpose?
Yea, the problem is the inconsistency. They added new bosses on reaper for comp and absurdly they added all three ED to normal quest cape, which in my opinion is pretty inconsiderate. It might be an oversight, but it's bizzare.