He explicitly states in his conclusion that "whether or not anyone has the right to criticize open-source software is an irrelevant distraction". Well I must say he picked a great title! It ought to be "My Complaints About Spring Batch and Some Thoughts On Sexism"
It's not obvious that the difference in computer science degrees by gender is due to brain chemistry. With the "politically correct" idea that everyone should be able to pursue whatever field they want without social barriers, researchers are looking (http://www.seas.upenn.edu/~rpowell/documents/sigcse204-powel...) at ways to improve the teaching of computer science.