You appear to be under the absolutely ridiculous illusion that "academia" as a space for discussion is a self-evident isolated bubble of safety. I wish it were that, and I literally work most days to try to make it that way, but it ain't that way.
Simple metric. Look at the makeup of "tenured faculties" back then. Overwhelmingly white and very male. Do you seriously believe that such a make up could nonetheless provide a diverse cross-section of thought?