Because, if not, then it means there are no Tucker Carlsons and no Jon Stewarts, and no John Olivers in that universe. Probably because nothing needs internal investigations in that society as a whole!
In Deep Space 9, Jake Sisko (the station commander’s son) is a journalist for the Federation News Service. There’s a good episode where he ends up in a war zone and the story covers cowardice and PTSD.