The writing department has such an extensive layer of editors and reviewers that come after the initial writers that sometimes the writers barely recognize what they started. What goes out in print gets very sanitized... but can obviously still be wrong and very damaging later. That's why they're very careful about what they write.
It's the talks that can get wild and speculative. That's why they now have the rules about not circulating recorded talks. They want that crazy, controlling crap fed to the masses, but they don't want it recorded where it can be fact-checked or pointed out as crazy lies later. No evidence left behind.