Significance of Ms. Petrelli "sacrificing" that girl for Sylar?

[RedPhoenix23]

honestly the thing I thought was strange wasn't that mrs petelli sacrificed the girl it was that we didn't even see the girl try to excape she was all calm about being used to feed sylar. Sorry but when someone calls me into a room with a killer and says I'm gonna feed him I'm gonna be running faster then ever not just standing in the room waiting to be killed and used as food.

I don't think the girl heard the crazy mommy say that, lol. Plus, even if she did hear Ma Petrelli's whisper level "feed you", Angela did rip that thing out of Sylars nose that was likely the only thing stopping him from using his powers so he could easily snatch the food girl up and prevent her from running really fast.