Not sure I really see this as an issue of being open-minded. Her views are completely conventional, albeit outdated. They are, however, obsolete by the standards academia which has a more sophisticated view of gender.
Are you claiming that any discussion that someone or some group deems "outdated", "conventional" or "unsophisticated deserves to be suppressed on those grounds, and that those who defend such views are to be treated in the manner Stock has been treated?
What gender theory posits is controversial, to say the least, and it is itself quite new and highly problematic despite what your claims seem to suggest. Stock is also a feminist which belies the notion that she is defending anything that could conceivably be characterized as a traditional understanding of the subject matter.