Originally Posted by Saitou Hajime
Well, that's after a prolonged absorption that brought Logan to the brink of death, not a casual one.
Which is how they can introduce the Ms. Marvel power-up for Rogue? Have them say her absorbing Ms. Marvel, or any mutant for that matter, nearly killing her (can be done offscreen, years before DOFP) has profoundly changed her, both in power levels and personality.
But again that's if they want to give Rogue her other powers.