Staff vs Wand+Focus, huge discrepancy.

So I took a look at the actual numbers between the two choices to see if a staff would be viable in order to get the Lightning Bolt skill and try it out. The discrepancies are so massive there's no way a staff can ever compete. Seem like a huge design oversight.

Combined max rolls for either choice as follows.

Staff:
Spell Damage :169
Lightning Damage :169
Spell Damage + Mana :69/64
Mana :251
Cast Speed :52
Intelligece :33
Spell Crit :109
Spell Multi :39
Mana Regeneration :69

Wand+Focus:
Spell Damage :238
Lightning Damage :238
Spell Damage + Mana :49/45
Mana :358
Cast Speed :67
Intelligece :66
Spell Crit :208
Spell Multi :73
Mana Regeneration :138

This is obviously not all rolls but should be more than sufficient to illustrate the discrepancy. On top of this the focus also provides implicit energy shield that the staff does not have.