Neither of these involved legal allegations later proving to be false, they were simple news story retractions (just like Fox News did Sunday with Trump's dignified transfer performance [0]).

The topic at hand was a whistleblower report, which would have serious ramifications if proven false. It isn't apples-to-apples.

[0] https://thehill.com/homenews/media/fox-news-donald-trump-dig...

Trump suing a news outlet (bbc) for how they edited a piece doesn't seem like "a report of allegations that ended up not being true".