From what I've seen it's so have a stronger effect on public knowledge.  It destroys the tactics to avoid the subject, such as denial and downplaying.  Creating a more damning perception with each leak.  It keeps it in the news cycle longer, making it harder to rush past and making the public remember it creating a long term association.  And it forces Biden to fight it instead of choosing his battle, attacking Biden where he is weak. We hate it because we review and remember, but for most people they read a headline feel something then move on.