I get the premise but DoD ditched this tech and more complex versions of it after dumping millions into it.
I suspect the offset of 30kg is more theoretical than practical, I suspect it makes an unloaded person's stride and jog easier which makes them weaker over time, a heavily loaded person likely gets unique back and knee strain along with irritation around the straps and maybe even blood flow issues.
Using this device regularly would require additional exercises to strengthen the underwhelmed areas, yes. However as a consumer technology, guess you could say "there's money to be made." Also, blood flow issues aren't necessarily a problem, see Blood Flow Restriction Training which has shown some pretty significant effects in occluded limbs. "Kaatsu" training it's called in japan if I spelled that right. That guy is jacked. Idk about muscle balance, but undeniably jacked.
Just because the DOD "dropped it" doesn't mean it didn't continue behind closed doors, imo. Either way it's a tech the public has shown interest in, and I suspect it will continue, if this is only the first iteration.
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