From the captioned art in the article: "Siege, from the Peterborough Psalter, early 14th century, via the KBR Museum, Belgium.
Yes, those defenders are all women."
Majority, but not all were men?
But why care about that at all and consider it the most striking thing about the article? Even rethinking it 3 times I'm not sure what you find preciser in this, or how it is not completely irrelevant?
You sound pretty sure that women would never be among the attackers, but that seems like a risky bet to me. There are historical accounts of Viking attackers who were women, for example.
> The person below you has the advantage of jabbing at your legs
Weren't virtually all fighters in those times men?