i just feel if you've got a community of people with very high rates of conditions that lead to increase in Postural Sway (ADHD, Anxiety, cPTSD) and Hypermobility (Ehlers-Danlos EDS) to the point it normalizes and people begin to copy each other socially (where in genpop its often too rare a diagnosis), then naturally you're going to see unique movement styles within that group forming that revolve more around how their bodies move.
reminds me that during my own training my movement teachers often remarked that i had physically a great affinity to techniques like Butoh which revels a lot more in odd shape/odd moving bodies.