It depends if there's some confounding factor that wasn't accounted for. Perhaps 50 years of dance/yoga/gymnastics/core strength/martial arts leads to both few

It depends if there's some confounding factor that wasn't accounted for. Perhaps 50 years of dance/yoga/gymnastics/core strength/martial arts leads to both fewer falls and greater 1-leg stance duration. A much shorter course of balance training much later in life might be insufficient to replicate the same benefits.