I'm complaining about her misuse during this event/part of the era in the only book she's in. Feels like a valid place to me.
Emma has done nothing in this book but give stuff to Tony. Gave him the club, gave him info about Mysterium, gave him myterium. All while not actually doing anything herself.
Has to be in disguise and can't be out and about, but she's the only one who can't so now she has to rely on Tony.
It'd be like saying Jean has been relevant because she realized something about herself and because she was needed for the Phoenix.