WoD was the last time i enjoyed the traveling, including non-flying, or at least could easily tolerate it. Zones were designed old-fashioned, and in a good way.
This moment when i went into Spires of Arak, and run under the trees, listening to quiet ambient, just to see this, was one of the moments that i will remember forever, AND i still visit it occasionally just to run around and embrace the atmosphere and gorgeous landscapes.
Starting with the Legion Blizzard went into vertical and tight zones, focused on rush. You rush because you want to get free from doing ground shit, get rid of annoyingly designed levels. Blizzard does it purposefully to artificially increase the size of the carrot that the ability to fly is.