The group of people that came up with this bill and it's wording have no idea how the internet works. The idea that a site needs to pay to provide a link to another site is not well though out. The internet is built on links.
Canadian news companies shot themselves in the foot here. They want social media site to not summarize their news articles (this keeps users on the social media site). At the same time news companies also don't want social media site to link to the news article (this directs users to the news site).
When news articles are summarized by social media sites it means that a individual can read the news article without going to a news site directly, thus a social media site gains financial with ad revenue directly from "content" it did not create.
What news sites wanted is user come to their sites directly to generate ad revenue on their platform. So a link would help users find this "content" and benefits news sites. Though news companies now also want to double dip and request that social site pay news companies for the link to their site.
In short, Canadian news companies wanted their cake and eat it too.