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Skimming the description, they used a structured light approach (active) for geometry deformation tracking. This is still probably useful for certain defense applications but an ideal goal is often to use passive tracking systems. It's impressive either way.

Lots of theater, performing, and visual art uses come to mind.

Some retailers (especially Japanese ones) have a fascination with the idea of allowing customers to "try on" different colors/styles via an on-screen avatar that's based on a scan of the customer. This would seem like a logical next step.

I'm unsure how much customers would actually want it though, at least after the novelty wears off.

I immediately thought of Disney parks and stuff like Cirque du Soleil and other performances (concerts, raves, etc)

Streamers could liven up their streams with this tech.