Unionism in NC: overstated or bogus?

Mountain Myth: Unionism in Western North Carolina tries to debunk the extent of loyalism in Western NC.
... what seems to be incontestable is that staggering numbers of Western North Carolinians signed up early to fight for the Confederacy, fought persistently in horrifying circumstances and died in great numbers.
That's what the story says and it seems to echo the author. What bothers me is that flavor of debunking that attempts a belief substitution instead of a correction in which new facts speak for themselves.

Is that what we have here?