Unless the holder of the copyright has agreed to it, nothing published is "public domain".
Asserting copyright is the only way to protect copyright, if a copyright holder allows their work to be published without asserting their rights, they lose credibility and legal standing.
Last time I checked, the Toronto Globe and Mail is not a medical care provider, the idea that a newspaper even has a "duty of care" is simply absurd.
As for the being in the business stuff, time for a serious reality check.
"Duty of care" is a universal legal duty. Certainly in the western world amonst those countries whose legal systems derive from English Common Law.
In simple terms it's the duty not do do anything that by act or ommission causes harm to others.
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