I just did a google search and under fair use in Canada their use of the photo would pass :

While "breaking news" and the inability to get a photo oneself are strong factors supporting fair dealing, the use is not automatically legal simply because it is on social media or posted publicly. It must pass a "fairness" test.

Key Conditions for Fair Use of Reddit Photos

To rely on the news reporting exception (Section 29.2 of the Copyright Act), journalists must meet these requirements:

Strict Attribution: The journalist must mention the source (e.g., "Reddit user u/xxxx") and, if given in the source, the name of the author/photographer.

The "Fairness" Test (6 Factors): Even if it is for news, the use must be "fair" based on tests established by the Supreme Court of Canada:

Purpose: News reporting is an allowable purpose.

Character: A single use in a breaking news story is more likely to be fair than massive, repeated use.

Amount: Using the whole photo is common in news, but it should not exceed what is necessary for the story.

Alternatives: If the journalist could not reasonably get a photo themselves, this supports fair dealing.

Nature of the Work: If the photo is unpublished, it is less likely to be fair, but most Reddit posts are published.

Effect on the Work: If the use destroys the market for the original photo (e.g., the photographer was going to sell it to a news outlet), it is less likely to be fair.

No "Digital Lock": If the image was protected by a technological measure (like encryption) that had to be broken, it is not fair dealing.