Educational field obligate that professional is one thing to be praise and every one does his duty based on the skill major or his knowledge discipline. knowing about that I am so doubt with my doing to express my improvisation to teach.
I'm going to guess that it depends where you live. If you live in a country that wants to control how everyone thinks, then yes, a teacher spreading free thinking and expressive writing is dangerous.
If you live in an open society where everyone is free to think, feel and believe what they want... well, then nobody gives a sh!t what you do. That's the ironic beauty of freedom.
(Not that the US is doing that anymore... we have utopian liberals telling us what we can say and think, and we have right-wing crusaders telling us what we can do... so, take anything an American tells you with a grain of salt.)