Am I now suddenly supposed to have comparable amounts of dexterity in addition to a large amount of intelligence? I have always associated misses with physical accuracy, not magical....
Afaik magical accuracy scales with wisdom, but you can increase it easily with a preci13 rune or the 10% passive of your pet. I had something around 150 on instrument, when the change hit me, but with some support and stuff like that, the misses were not as bad.