[wiether]

> 1) people with medically compromised joints who would like to engage in experiences that their bodies don’t currently allow.

They say:

> Engineered to augment natural lower leg and ankle movement

Meanwhile, most people who can't walk/run as they would like have issues from their knees upward.

Worse, having heavier lower leg means more strain on the upper leg.

Yes, there's probably a narrow niche of people with lower leg only issues that can be helped by this device, but most people have issues upward ; and this device have the potential to create issues upward on people not yet concerned by them.