[jjav]

Yes, there is certainly terminology ambiguity on what "suburb" is.

To me the huge lots, big setbacks of houses away from street and major forest cover, isn't a suburb. The new link you posted seem more like farmland, not rural housing.

To me a suburb is where houses or townhouses (but no highrises) are packed next to each other in small lots.

But yes, it would be useful to have more specific definitions of housing densities instead of dumping everything that's not farmland or Manhattan into "suburb".