Naay, not a hard point, +10s duration per soft level is good enough.
Hah, that’s exactly what I proposed in mine suggestion xD
On the one hand that’s true, however Bone Prison and Bone Wall investment not only buffs offensive bone spells, but also significantly strengthens Bone Armor. As a Wind Druid I don’t afraid any elemental damage, even from Diablo or Ball, but painfully feel every encounter with physical archers, even normal ones, left alone champions/minibosses; Bone Armor is a blessing in such situation. Besides, Bone Wall and Prison give excellent tactical options, and used wisely they are an immense help for Bonemancer. The simple rework for them should be they emerge instantly, and more complex one you can check in my suggestion. So removing these synergies might not give the expected result, as you’d have to reinvest these points in Bone Armor branch anyway.
Anyway, I’m fine with 100 point investment in bone tree if Teeth can shotgun, Bone Spirit will move twice as fast and lock on targets behind corners, Bone Prison can be cast on ground not on unit, Bone Wall/Prison emerges instantly. Well, comparing to Cyclone Armor, Bone Armor might get 50% increase bufff I suppose.
@Skulm
I’ve added Raise Skeletal Archer in my suggestion, please check if I haven’t messed up anything.