i think the anti-stroads people are right but naive: stroads are bad, but how did we get them? and in light of your answer to that, how can we expect them to be fixed? undoing stroads will be a huge expense that will only benefit the overwhelming mass of people. it'll never happen.
The term came from this video: https://www.youtube.com/watch?v=ORzNZUeUHAM
No, it is used by folks who like proper design:
> Streets: The function of a street is to serve as a platform for building wealth. On a street, we're attempting to grow the complex ecosystem that produces community wealth. In these environments, people (outside of their automobiles) are the indicator species of success. Successful streets are environments where humans, and human interaction, flourish.
> Roads: In contrast, the function of a road is to connect productive places. You can think of a road as a refinement of the railroad — a road on rails — where people board in one place, depart in another and there is a high speed connection between the two.
> Stroads: Stroads are a mash-up of these two types of paths. We like to call them "the futon of transportation" because, just as a futon is neither a particularly good bed nor a particularly good couch, a stroad is neither a particularly good road or a particularly good street.
* https://www.strongtowns.org/journal/2017/10/30/the-stroad
People who use the word "stroads" want society to stop building stroads and go (back to) building streets and roads. See the ten-minute mark of the video you posted on how The Netherlands does it: stroomweg (highway), gebiedsontsluitingsweg (road), erftoegangsweg (street).
See also his video "The Best Country in the World for Drivers":
Not everyone agrees with you that cars and roads are something we should discourage.