Snowden's revelations are massive. They should be cited anytime every time an intelligence reptile anonymously leaks something to the press, which is every day. Instead, the only time Snowden makes the news is when they want to announce some new persecution like this recent lawsuit over his memoir. Here is on Joe f@#$ing Rogan for goodness sakes! That is not widespread coverage.
Media coverage tells you nothing about the authenticity of a whistleblower. You have not demonstrated any useful criterion for identifying 'fake' whistleblowers other than "I do not agree with his/her goals."
You're right, media coverage tells us far more about the media than about the people they cover. That was actually the point I made at the top of this thread: