Thats not necessarily true if its the weather service, post office or whatever. I am no Twitter fan/user, but its a decent format for circulating government announcements that people will actually see.
The argument is that its fair to label NPR as govt funded, because they technically are, but Twitter is not exactly in a hurry to apply this rule anywhere else.
What's sad is that people just automatically assume every government is altruistic when history has proven that to be unequivocally false. There is not ONE government in history that hasn't committed disgusting atrocities against its people.
When you realize that, it becomes clearly easy to see that you ought not put full trust media that is backed by government when every government has used media like this to push evil propaganda on to its citizens.