Very well could be. Our house had a media room. We didn’t have use for it, so it wasn’t just a storage room for us. I would never have went looking for my family there.
But if you couldn’t find your family, wouldn’t you at least look there before calling the police? I also have a room in my house we rarely use but I would think I’d take a peek in there before I called the cops saying I can’t find my family.