Northern Thanalan was always barren, ever since they nerfed Dark Devices it was underpopulated, and the buff to dungeon experience made Darkhold and Aurum Vale runs superior to grinding N. Thanalan fates. I can't remember anyone FATE farming in Mor Dhona outside the first 2 weeks of release.
And you're seeing less players FATE grinding in general because they're all on their main jobs grinding level 3 fates in lowbie zones now.
