If the people in the newsroom were acquainted with transgender people, or if someone was transgender themselves, they would feel the need to refer to Manning as Chelsea, and while I understand the news sources would need an explanation as to why Bradley is now Chelsea, referring to the person by how they wish to be referred to is very important. No transgendered newsperson would refuse that right to someone. It is very clear that some news sources, including NPR, do not have diverse enough newsrooms if they do not feel obligated to refer to Manning as female.
While daytime television is not typically considered news media, I do feel that there are aspects of journalism within daytime television, mostly when it comes to interviewing. Maury Povich spends many episodes in a chair with a person or group of people asking questions, and while it is for the entertainment factor, he does use a key journalistic practice. In this video, it is apparent that Maury also suffers when it comes to dealing with transgendered issues on his show, and it shows the lack of diversity on his staff. If Maury had a transgendered person working for his show, I am sure they would have been opposed to a show where Maury asks the audience for their opinions on if the woman before them is by birth male or female. He also struggles when he asks if the woman is a man or woman. Obviously they are all now female, so in asking the audience, he is offending the woman on the stage (especially if she was born male and the audience is saying that she is a man).