Writing in Politico Magazine, Jack Shafer has a suggested answer.
By disparaging the rush to balance I don’t mean to suggest that reporters should shut their ears to evidence that contradicts the direction of their stories. If you omit important facts that get in the way of your argument, readers will find you out and discount what you write and what your news outlet publishes. But a slavish devotion to balance—making sure every alpha who expresses an opinion in a piece is paired with a corresponding omega, or shrinking into a defensive ball every time a critic accuses you of overcovering a topic—is injurious to good journalism. To be alive, journalism must be a little swashbuckling, a little deaf to its critics.