Oh please, save your Hollywood marching-band hyperbole for a U.S. Marine recruiting video. ISIS is on the run. But even if it established its caliphate, it is half way around the world. They could duke it out with other mid-East countries for the next century and it would have zero effect on any of us in Toronto, Red Deer or Halifax.  You or I could write as many comments to The Globe as we want. 
A soldier shot someone. The military is -- as all organizations do these days -- trying to hype their brand with a public relations release.
To suggest there was an existential threat to Canadians that this sniper eliminated is absurd sentimentalism of the Lawrence Welk school of thinking.