Interesting thing, but the only way i can find why some author finds the death itself a woman is that: femme fatale. The womans was the end in some cases for the men, because by the mens weakness for the woman. Maybe those authors who find the death female is that the men weakness for womans.
Kali is an incarnation of Parvati, who is the Kindly Mother Goddess, who is Shiva's consort. And there you have it!