Sigh. There is no "coordinated, orchestrated" campaign against Uber by the media. The media will pretty much pounce on any story they are given, provided it checks out.
This pattern of stories about Uber is very familiar and very predictable. It starts with a single, note-worthy story. Based on the reception of that story, other employees (former or current) are emboldened to leak information of their own to the media/write their own blog post/etc. That story feeds another leak, and so on, and so forth. At this point I don't doubt for a second that numerous people inside Uber want Travis gone, and consider the short term bad press to be worth it in order to achieve that goal.
There's no conspiracy here. Just the media reporting things they are told by people in the know. If there were other ways to get rid of Travis (more diverse stock ownership, or, dare I say the word: unions) people would probably go for that route. But when you shut all that off your employees will use the press as a last-resort pressure release valve.