I'd be interested to know to what extent it is that the police have simply internalized Trump's media antipathy. Perhaps the insane self-destructiveness of his time in office is leaking...
The police and police wives in my family were already very cynical of journalists way back before Trump got roasted at the White House Correspondent's Dinner.
Every journo article that criticizes the work of an officer, a criminal case of the department, or any slight of the honor/reverence that Blue Liners have for the profession / individual LEOs is taken very seriously. The irony is that the journos can't publish accurate information without sources and police and their families don't/won't/can't be sources which would make their stories more accurate.
In the end, you get a media outlet either echoing the statement of the PR department of the Police or you get an investigative reporter doing the actual "checks and balances" role of the media. I just think police culture (and the legal/employment restrictions placed on officers) can't be comfortable with freedom of the press.