I'm unsure if you cant or if you wont understand the issue, perhaps a bit of both.
I don't mind working for my stuff that is part of the l2 charm if you like. The reason i' raising the question is that given the adena drops are 50% of what they should be it leads me to believe that the mobs in question have their drop table reduced with 50% across the board. If this applies to the spellbooks aswell that should apparently have 0,01 - 0,05% drop chance, then my own humble opinion is that its a bit to harsh.
Personally i think they thoroughly messed up the drop table with the VIP sys