The hard truth is any child that wishes to learn to walk must go through those apely bipedal motions so their executive motor control brain of body awareness and body musculoskeletal control, makes neural plasticity connections via use with the more one repeats, the more a skill become usable and potentially greater.
Likewise, the path to being able to dance at any level of interest more naturally is via performing the motions and not by reading some book, listening to someone's choreography descriptions, or watching YouTube video. Those can point one towards a movement goal, but one still will need to go through the motions of performing whatever as any body motor skill is ever recorded by mere thought.
So yeah, you gals that sometimes dance around your home while otherwise occupied, are actually helping your body over time to increasingly cross connect from your hearing and proprioceptive brain sense areas from listening to music and bilateral rhythms to your motor cortex. The more one tries to be aware of their inner feelings that control their movements, the more they potentially can improve by mere self awareness of what feels correct. Over time the movements become automatic. Like driving home from work down a freeway while mulling over what you will be making for dinner and later wondering how you managed to reach home after not seemingly being aware how parts of your brain did so rather automatically.
To simply become more aware of much of one's inner body skin and proprioceptive visceral awareness senses, one can simply daily, maybe at times with eyes closed. sway back and forth like the gal in the video but without actually moving one's feet that makes this mentally easier to perform, while purposely trying to be aware of how your body feel's in all in areas as a 3-dimensional bilateral mass.
With pendulum dance movements, is much like walking, as one may eventually become aware of efficient movement bilateral resonances without bothering to think how that occurs. Just like young kids standing on their beds then jumping up and down on their beds until they feel how synchronizing the rhythm allows the trampoline like effect.
