I honestly would prefer if Jean had asked Rachel to do it, then. You could say she was trying to keep the investigation as "by-the-book" as possible, considering Rachel is part of X-Factor and Jean isn't. But then again, Rachel should also go in Magneto's mind [edit: even if Jean and Emma are actually doing the work and Rachel is there just a telepathic witness to the process so things can be as official as possible].
The point isn't that. The point is that it happens too often with Jean. You don't see male characters being put on those situations, for instance. They actually get interactions instead. Again: Leah could have written Rachel and Jean actually interacting in X-Factor, considering she's a writer who has dedicated panels for personal interactions in her book. She chose not to. And then we get that BS?
I'm sorry, that I really can't excuse.