I believe the column is aimed at the general sense of Islamophobia that does exist in some quarters, and that there is a risk of it being "normalized".  The massacre in Quebec City is the catalyst for the article.  I don't believe there is any accusation that Canada isn't, as a rule, inclusive; see her reference to the message from her daughter's school for an example.  But at the same time, it can't be denied that "in recent months" (ahem, ahem) intolerant people have come to feel empowered by "certain events."  It's a decent enough article.
And by the way, no aspect of Sharia Law that is in conflict with the Charter will ever come to be in Canada, and I think the author of the article would be quite happy with that.