Like her father, Petra has idealized the newspaper as an impartial and selfless social crusader. In the moment when her father is hitching his social fortunes to it, she realizes that the paper is not as good as they believed. It’s important that she makes this realization long before her father does, even though she’s had much less interaction with the newspapermen. As in many other cases, Dr. Stockmann’s womenfolk are better at detecting danger than he is.