Isn't 'Duality' wrongly used in this context?

Long before we can either speak or walk, we're bombarded with the dualities which comprise our "playpen," beginning with Yes-No, Light-Dark, Good-Bad, Right-Wrong & Truth-Deception. These core dualities are designed to instil the feeling of powerlessness into the newly arrived soul as it gets used to its new form and environment. Did you know that lab rats born in captivity never have a sense there exists any other reality for them? Other dualities present themselves to us while still in the newly arrived category; concepts like Male-Female, Love-Hate, Joy-Grief, and Dreams-Nightmares.

~Source: http://nexusilluminati.blogspot.com/2014/05/the-illusion-of-good-vs-evil.html?m=1

As far as I know A "https://www.collinsdictionary.com/dictionary/english/duality" describes two aspects of a single thing. For example, applying the "wave-particle duality" principle to light says that for some purposes, a small enough amount of light behaves like a particle; and for other purposes, it behaves like a wave.

All the listed pairs are separate things. They are not aspects of something. Then how can the author call it duality?