With the hearing thing in this game (I haven't played it yet) I think would be a problem. Not a major issue, but if it isn't acting how it should then it should be fixed, or improved.
Other game's I've played, horror games, where the monster or whatever is chasing you can only hear you often go to the last place they heard you even when you move from that spot. I think, in my opinion, that's how the ai for Chica should behave since it'll at least give you a reason to actually see her as some kind of threat, or give you a reason to be quiet.