EDIT: We erroneously identified Grazzbek as the creator of these maps. They reached out with the following message:
I am actually the GM in question and while Im flattered they were on the lookout for me, this isnt my work and there are several ways this work differs from my own. These maps pretty faithfully recreate the zones while I take the zones and expand upon them and make changes making them scaled up to the size of a world roughly earth sized. I hope Wowhead sees this and makes the changes. Whoever made these maps deserved to get credit for their work and whoever made these isnt me.