Too many people complained about storm having so much damage and their spells being stronger. They practically nerfed storm of all of its good qualities to appease the masses. All the spells that had high damage and great effects were lessen or removed to make gameplay easier for everyone else. This in turn caused all good gear set bonus for storm to be reduced in damage. Fire got the most damage cause not enough people complained about fire being unfair as their power is dot spells. When comparing a storm with 174 damage with an Iron Sultan 948 damage still does more than a fire wizard with 177 damage with an scorching scimitars 876.
Because KI has been spoon-feeding Fire for years. Fire gets better stats & spells than Storm in pretty much every single update. I agree, it makes no sense that Fire should have more damage than Storm... but that's just the way the game is nowadays.
Personally dont understand how darkmoor gears can still be a viable alternative 40 lvl later. That mean one set is too strong or the the other too weak or both.
Fire shouldn't have more dmg output than storm but just a little less (-2 to -5) Same for critical -7 to -10 But they should get more pierce (+3 to +7)
The spells are slowly revamped to be fair but this should not impact the stats
Also actually there is globally one main set that have better stats on all categories per lvl (best dmg,pierce,crit,accuracy,...) Thats don't help for school identity project and just force the alpha striking.