Funny, TurboT and I were just discussing the Charter of Rights and Freedoms yesterday. It has an overwhelming theme of moving forward for the good of the group, while respecting individual rights.
As such, I believe that your research concludes that blasphemy against God would not be tolerated any more than a Christian / Jew / Catholic / Muslim / whatever could tell an atheist that he's wrong for not having any faith. It would appear to work both ways.
I defend anybody's right to speak about what they believe (or don't believe), as long as respect is maintained. We can all get along if we try.