IMO "human problem" isn't a well-defined concept, so it's not really possible to misunderstand it. I think a "human problem" is a problem that _humans have_: how to move around? (transportation) what to eat? (agriculture, etc) how to prevent cheating? (some kind of surveillance) how to communicate over long distances? (radio, the internet, etc)

Sure, some kinds of such "human problems" can be reduced to physics and technology, that's the point. This also doesn't necessarily mean that solutions produced by such reductions are effective: is surveillance good at preventing cheating during exams? Kind of. Does it often fail to catch cheating students? Absolutely.

However, indeed, there can be many different (perhaps equally correct) definitions of what a "human problem" is.