Thre is nothing like that. Any one can blog in rediff and publish their article. Shenoy is more or less based in Kerala (although he shuttles between New Delhi and Kerala frequently) and he has first-hand knowledge about what is happening in Kerala and he wrote it. If someone is there is Gujarat or Rajasthan to highlight their state's achievement, they are also welcome and if the contents of artile is worth reading, it will be published.
If you have indepth knowledge and and categorically make statement, you can do so about Gujarat or for that any other State.