Definitely not but I think you're just mixing terms. Freedom of speech and freedom of press almost never encouraged in school. Ask my teacher said freedom is out there not in here. School is a Dictatorship. Why they might not say That out loud anymore its still the case
Freedom of speech and freedom of the press are: 1) rights of citizens, but do not apply in all forums at all times (for example, freedom of speech does not apply in private sector workplaces), and 2) protections from government overreach.
Freedom of the press exists in Canada, but that doesn't give members of the press unfettered access to public schools. Freedom of speech does not permit teachers to use the classroom to promulgate their own crazy views on politics, society, or otherwise. They are supposed to stick to the parameters of the curriculum established by the school board. In turn, school board trustees are accountable to voters for the decisions they make concerning the curriculum.
I think what you are really highlighting, and where I agree with you, is the need for schools to encourage the processes of debate and discussion regarding topics within the curriculum about which reasonable people may hold different viewpoints. Debate and discussion is essential to development of critical thinking skills. Too often, our schools and teachers are focused on simply getting to the end of the curriculum as quickly as possible and with the least thought and effort possible. Sometimes, that is in service of specific political messaging that our school boards are promoting. We are starting to see the results of this approach as students enter the workforce, unable to make good decisions.