The Shadowlands enchant that increases your gathering speed for herbalism does not function within the Korthia sub-zone.
I’m having this issue too.
also noticed this. I feel like Korthia isn’t flagged as a S/L zone somehow due to the potion of SPectral Swiftness not working after death and the Kyrian bell not working also, both are s/l only items, like the enchant
Skinning, mining and herbing are not being sped up by the shadowlands gathering enchant.