Hussar
Legend
This was actually a really good article and made me realize how uselessly huge most D&D settings are.
In the past when I've run hex crawls at 6 miles per hex it's been very abstract and not very imaginative because I can't really describe what a journey would look and feel like at that scale. It's also unusual to have more than one encounter per day so in game terms it's like a series of 5 minute workdays. I think a much smaller map scale (1 mile or even 1/2 mile per hex), maybe combined with a rule where you can't actually rest unless you find an inn, would solve both of those problems.
There's a trail that goes through a ravine from my house to an off-leash dog park. That's a little over a mile. I can actually relate to a walk of that distance.
edited to add:
The Elder Scrolls Oblivion and Skyrim have 8 or 9 cities in a gameworld about 16 square miles, and they feel pretty huge and epic. They're basically a Ten Towns of Icewind Dale game.
This I really agree with. He even hits on it in the article when he overlays one area and it shows a town some 5 miles across and a river three miles across. But, the big thing was, in that map, all there was was that one town. D&D worlds are ridiculously large. i would really appreciate seeing a setting where the campaign was a whole lot more local and much more detailed.