You articulated my mixed feelings about releasing anything authored by that nut. We know that she was a nut, what more is needed beyond that, except for perhaps deeper study into the circumstances and dynamics that made her into one. Which no doubt consist of politically damaging bad optics the FBI is hiding away on behalf of the current Regime. Then there would be passages and quotes the twisted nuts out there would seize upon as rallying cries 'to continue the fight' on behalf of their beloved martyr for 'the cause', which has potential to agitate and release even more craziness upon us by people who appear ready to do so. I don't know if there is a good way to release any of that, what consequences it would start into motion.
Calling it "The Manifesto" sounds rather confined and minimalist, going by the amount of work she generated which sounds like it would fill a library shelf. More like "the evidence", "the plans" or something.
I wish it was called a “screed” instead of a manifesto. Manifesto makes it sound like it was authored by someone, howeve depraved, had some measure of intelligence.