It's not a phobia if it is a rational fear, and since she's writing a documentary, it's at the very least a very rational fear to her. The only way her book could spark Islamaphobia is if the Canadian government took some level of extreme action against Islamic law and practices being observed in Canada, making any concerns or fears about ISIS's activities impacting Canadians seem irrational. Otherwise, it's merely a concern or awareness, not a phobia.

If you read a story about someone on an open field being struck by lightning, you'll be cautious about lightning next time it rains, even if the odds of being struck are low. You're not lightningphobic, just over-aware.