Agree with your viewpoint, but I would just add that Oblation is on a 60 sec CD, so giving it earlier with a single charge wouldnt solve the problem at all, I'd rather they make a new skill called Black Night or something like this, being a 15% shield that doesn't give dark arts making it a dps loss at earlier levels and teaching players to be conservative with it's uses, so upgrading at 70 to current TBN and releasing that restriction would feel like a really big evolution on the kit.