She, Magneto, and Quicksilver, are all shocked when the spell only works on Quicksilver, NOT Magneto! So obviously, Magneto is NOT their father. And, SOMEHOW, despite multiple instances where this ...

He later pointed out that Peters' Quicksilver has "different connections" to the source material, specifically as "[a] comic book character that has the sort of attachment to Magneto and House of M." ...