Statement should read no civil service government employee should talk to the media about their work or workplace unless the authority to speak on the topic on which they are speaking is in their formal job description, or they have been approved to speak to the media by someone who’s formal job description gives them authority to approve that they do so.
I am all for radical transparency in the public sector, but part of that transparency requires that the individuals communicating have a precise understanding of technical communication. I’ve seen inaccurate communication cause very similar issues to those caused by a lack of communication.