> It took almost 6 months of badgering for that to finally happen though, despite an extensive and widely signed (by experts) op-ed pointing out how wrong and dangerous it was barely a week after the original article was published, and calls for corrections/retractions started within days if not hours.

Completely agreed, but they do fully concede this in their retraction:

>This made a relatively small, expert, vocal and persistent audience very angry. Guardian editors did not react to an open letter co-signed by 72 experts in a way commensurate with the combined stature of the critics and the huge number of people potentially affected by the story.

It might have taken a while for their internal review to complete but, honestly, what more can we ask for but an honest admission like this? If more media outlets could meet this standard we'd be in a much better place.