The article says : "Anti Muslim hatred stirring in Alberta is,  sadly, nothing new"

To which you responded:
"Anyone who reads online comments has known this for years"

The headline is a clear and unmistakeable stirring up of the stereotypical portrayal of Alberta as portrayed in the central Canadian media, a media which pounces on any hint of negative stereotyping of other regions of Canada, but which finds Alberta to be a useful whipping boy, regardless of facts.

And the intended meaning of your response is just as clear. Regardless of where you have lived for 39 years.