http://www.watson.org/~wander/eq/spells.html
Okay so you get specialization at 20. The level 16 and level 20 nukes were always Evocation.
Shock of Flame and Bolt of Flame.
I see what you are talking about with the later Shock of Blades spells being conjuration, but you would have hit your specialization cap before then. Looks like simply poor planning (I did it too and can see how this will hurt me later on)
Basically what I am saying is that the later changes to the blade shock line almost certainly would have not impacted which specialization you got because you wouldn't have been using those nukes at level 20-23 anyways. Basically in live you would need to specifically cast other conjuration spells aside from nukes to lock in conjuration if that is what you wanted.