I would hope them adding magic accuracy would show your entire total, not just a summary of what your gear shows. Since STR and Attack/VIT and Defense are displayed correctly. I'm confident that they'll add correctly accuracy and magic accuracy. I see item level stuff being more likely for an emergency maintenance than SE forgetting to count attributes toward the total.

Regarding at least Magic Attack Bonus, I agree I'd like to see that total too. Saying it's unnecessary because you can add it up really isn't a solid counter point.