Pinwath mithuriya, bohoma pin obata...
True, this is not a fact emphasized in the core of Dhamma; but every word of Sammasambuddha Gautama has a deep meaning (as the end-note to the article states clearly...); Every word of Sammasambuddha Gautama helps us break-away from the Samsara...
Although not explained in details "Sthri indriya" and "purisa indriya" are mentioned in the original teachings "Indirya Sanyuktha". They represent femininity and masculinity; which is determined by Kamma (please correct me if I am wrong)... It is our attachment (due to Ignorance/Avijja) to what 'we' are; the 'World' we see that takes us through the samsara...
What important to know is that we will not remain in the same gender throughout the samsara (e.g. Isidasi Theri Gatha); and male chauvinism, feminism, etc. are not advocated by Buddhism (needless to say that they are meaningless according to Dhamma/ the Doctrine).
We can see many people refering to Buddha as a feminist (provavly because of the narrow view they have of life). It's not "kantha vimukthiya" that Buddha disclose/talked about; it's "vimukthi" ultimate liberation from Tanha (and hence Samsara)... As Buddhists we should be aware of that if not to be mislead... Aim of a practicing Buddhist is seeking this 'liberation'...
Theruwan saranai!