Look, Aims (Advisory Council on the Impact of New Media on Society) notwithstanding, civil servants been doing it all the while.
Love it or hate it, government policy is something always on everybody's lips, so what makes civil servants any different? In fact, civil servants probably have even more to say about it and, dare I say it, even more entitlement to say it, given the stake that they have in the ministry they serve in.
In the purpose of fostering creative tension, it's a wonder the Government hadn't thought of this sooner, but it's certainly better late than never. Its policies are best questioned & critiqued by people in the know.
For sure, the guidelines regarding the Official Secrets Act, abuse of position etc. need to be clear & clarified, but don't let that get in the way of the long-overdue ungagging of civil servants.