Which city corresponds to Camp Brittlebark? You've been there, right?
Because there is no city in Mor Dhona. So your reasoning here is flawed. No matter which city you run from, you're going to have to zone at least once. The distance from Uldah to Halitali is a short trip compared to the distance from any city to Mor Dhona.
It takes much, much longer than 10 minutes to run to Mor Dhona. Not to mention that you're going to have to dodge several high level mobs on the way, which is going to take additional time. My first trip into Mor Dhona took me
several hours, because I kept dying on the way.
Here's a thread complaining about how difficult it is to get to Mor Dhona.
There is simply no way that anyone who's ever been to Mor Dhona -- or is even reasonably familiar with the map of Eorzea -- could think it would take 10 minutes to run there from the closest city.
And even leaving that aside, running is boring to most players. Most players want to log on and do the stuff they think is fun. They don't want to log on and spend 10 minutes running somewhere so they can do 10 minutes of fun stuff, followed by 10 minutes of running back. Anima allows players to log on and do the stuff they think is fun, while bypassing the stuff they think is boring. That's a good thing.