Why is any of this redacted?
Because. Shut. Up.
Why is any of it redacted? Because they know they did wrong.
Probably tied to the same reason Pfizer changed 4 components of their formulation and branded it Comirnaty. Something bad happened and they fixed it. Something bad happening in drug trials is not uncommon. That's why they do trials before releasing for general use - to ensure the cure isn't worse than the disease, and to build up a knowledge base of risk factors - who is it "contra-indicated" for...
But no, the phase 3 trial included millions of unwitting test subjects. We have this conditioned response to trust our doctors and the FDA. They are trading on a reputation built up over decades of following procedures that keep us safe. They short-circuited virtually all of them with covid vaccines. Instead of a few thousand people at risk, there are a couple hundred million.
Their CYA strategy is apparently three fold. Bury the inquiries in a blizzard of paper. Redact just enough information to mask their culpability. Slow-roll their "compliance" with the ruling.
FOIA has exemptions for trade secrets, commercial info, etc. that were disclosed to the government during approval processes, bids, contract negotiations, and so on
This lets the government review the sensitive information and consider it during selection/approval processes while protecting the submitters from having to expose their sensitive information to competitors.
Also, information that may hurt the government’s bargaining position/strategy in subsequent contract negotiations may be exempted.
Phizer has some interesting things in its contracts, and had a full legal immunity put in.
The FDA is the property of Big Pharma.