Except that's not the headline The BMJ ran, they ran: "Covid-19: Researcher blows the whistle on data integrity issues in Pfizer’s vaccine trial" This lacks significant context, which is exactly what FB said of it. Taken alone, I would call that headline false. There is no evidence of notable data integrity issues in Pfizer's vaccine trial beyond the typical levels of minor documentation issues expected in large human trials.

The entire article from the opening headline to the grey box take-aways to the closing paragraphs is framed to cast doubt on the entirety of Pfizer's vaccine operation. That they don't outright lie inside the article is beside the point, they don't need to. The goal is to sow fear, uncertainty, and doubt and give ammo to anti-vax advocates who know the general public only read the headlines.