So they just stripped magneto of the only family he had...I liked that magneto had kids that he didn't have the best relationship with and now they have no reason to even associate with him. I'm actually happy I fell off comics(Money is tight) because Marvel & DC have become so convoluted in recent years and that's saying something.
Couldn't they just've revealed Magda was actually an inhuman? Thus Wanda & Quicksilver would be half inhuman and then you get the same effect essentially without messing things up again. Then you can address Magneto not knowing his wife's secret and investigating that part of her life because maybe the other inhuman knew her which might lead to other revelations for Magneto & the twins.