CraigB - the maps require people to go the extra yard and make the effort. It seems you are in a lowly populated area where there are no others to share the load. If you need the maps to be accurate you really need to have a bash at it,
I first used these maps about 4 years ago when I was going on holiday to Cyprus. The Garmin Europe maps don't include Cyprus - they have a franchise there which charges £100 for them.
However - I found a number of errors and omissions on the maps for my local area and reported them. Three or four months later they were incorporated. I guess they look for a second or third opinion before committing changes to the data base.