That shuffle dance style is how my own freestyle rock dance style began decades ago in the 1970s. Notice all the different ways they use greater dynamic bilateral movement. The more dynamic ones movements the greater a tool one has. The upper body, especially arms to hands as a countering force just like with dynamic skiing leads the lower opposite body footwork. If one practices such movements over years through decades it all becomes learned via neural plasticity repetition, natural, automatically flowing out.
That is also a reason I've have continued to dance so because unless one repeats and practices movement, such degenerates, fades from being a ready skill. None of such movements were novel in my era but rather go back at least to tap and jazz dancing styles of the 1920s that due to laws went underground though remained in public awareness mostly through Hollywood choreography.
Today even Hip Hop and Brake dancers use that same basic dynamic bilateral movement form. Such varies considerably from most dominant club dance forms that began as Disco tending to be torso upper body and wiggling waist movements without balanced lower body leg and foot movement. I do predict a move away from club dancing styles to such more freestyle forms because such is viscerally more enjoyable. In fact in music videos with dancing, one never sees dancers using club styles.