Ask HN: Gap Between Academia and Journalism

Many political and humanities scholars do research that is of a similar type that journalists would do. Due to fewer restrictions (ie time) facing academics, they can often write more in-depth material. Why isn't academic research more commonly integrated in journalism? Why is there this gap between academia and journalism when they could be complementary? If this gap were to be reduced, it would also reduce the gap between academia and the general public.

This is just my impression and feel free to correct me if I am wrong. If it is true, however does anyone have any ideas and comments that can add to my understanding?

EDIT: Journalists do sometimes use (and summarise) academic articles, but I think this is not done frequently enough (particularly in social sciences). Instead what I have seen more commonly are academics writing in a journalistic style on newspapers.

Also does anyone know of a more relevant community I could ask this question on?