So long as these policies applies both ways, I can live under either system. I don't make controversial political or social comments on state email or in my office displays. I expect that to be observed by others and it generally is.
George Will commenting on this makes an interesting point about the use of speech codes to attempt to change culture.
The treatment of the GNEA illustrates one technique by which America's growing ranks of self-appointed speech police expand their reach: They wait until groups they disagree with, such as the GNEA, are provoked to respond to them in public debates, then they persecute them for annoying those to whom they are responding.A technique, Will calls it. To provoke with statements and actions you know will be allowed until your opposition responds - then attack that response as "hostile."
We see this not only in politics, but the personal politics of everyday life. People who work in bureaucracies know that if you are the person who points out a problem, you run the risk of being considered to be the problem. If a coworker is incompetent, complaining to your supervisor may be the last thing you want to do. Especially if the person has been incompetent for a long time and every knows it but no one does anything about it, it is the person who declares that the emperor has no clothes who endures the wrath of the authorities. The ending of that fairy tale always struck me as unrealistic, by the way. In real life, the emperor would have the child and his parents killed on the spot and keep on walking. Problem solved.
In the Oakland scenario, it had clearly become acceptable for some social and political announcements to be made, because these were right. To make contrary statements would be wrong. This chilling summation is unfortunately what underlies the suppression of free speech. The suppressors would not see it quite that way - they have lengthy explanations why certain views are right in a particular way while others are wrong in a particular way. Thus they can maintain that they of course support free speech, but that this is an exception somehow.
In general, it is now a cultural value that one always has freedom to encourage someone to ignore cultural tradition, but does not have the freedom to encourage them to retain a cultural tradition. In unconscious irony, breaking tradition is now the one tradition we must not break.