But Wetherby, Boston Spa etc are part of Leeds Met and probably large numbers of their inhabitants work in Leeds (or Bradford) and as such they are aware of what it;s like to live there. People who live in and around "the deep South" are basically clueless about "the North." My daughter, born and bred in Leeds, now living in the Salisbury area will bear this out.
I'd agree that few southerners have much of a clue about the north, however, it's more of a case of them thinking that it's grim and somewhere that they never want to visit than thinking that everything is basically okay up there.
Northerners, in my experience, usually only know about London and base their whole view of "the South" on it.