Some forms of the Goddess are motherly, protective and interestingly, these are the popular forms, as these energies were deemed manageable for most folks (perhaps). Durga certainly falls into that category. This audio, in my opinion, mirrors the energy of Durga more and a tad less of her more warrior-like form called Chandi or Chandika, and intentionally so.
The Goddess represents the aspects of the Divine like creation, nurturing, protection, beauty, tenderness, etc., and hence She gets called the Mother (as she births, re-births - creation, consciousness) - but in reality, that Divine Consciousness is without a gender/polarity. In dualistic sense of the universe, she has names, forms, attributes, qualities; in a higher non-dualistic sense, she is just one unbridled, vast, unified consciousness that is without name, forms.
And different forms have different energies to them. Kali is also fiercely protective, but a whole different vibe than Durga. Lakshmi is very sparkly, bright and effervescent. My favorite is Lalita, the playful one - who embodies the erotic energies, the creative beauty of the nature, the epitome of sexual alchemy.