Other non-Canadian news sources are still available right?
People will just waste time on those.
Frankly, if Canadians are reading news about Canada mostly from foreign news sources, this might weaken the Canadian government’s control on political narrative - since they can’t pressure foreign news sources like Reuters, CNN, or Fox News, much if at all.
Canada has a pretty independent press already (15th in the World Press Freedom Index). CNN and Fox News present narratives optimized for engagement by a U.S. audience. The only time they would present anything at all about Canada is when it would interest a U.S. viewer, and as U.S. audiences understand pretty much nothing about Canadian culture and politics, the coverage is rarely insightful or informative to a Canadian audience.