The trip to the garden has become much more lively after that promise. New skills are not so easy to find, especially for acolytes who never leave the temple compound until their training is finished. The Bunny Kin don't like to fight, so they don't do a lot of dungeons and therefore they don't come across a lot of new things that aren't already in the temple library.
The temple village is not all that remote, only a single day from the shore, but it is well away from the main road, Cain followed the Guardians straight through the woods to get here, and he didn't see any roads leading out of town when they came in. There likely is one on the other side of the village, since it is clear that they have no fields here, so goods must be coming in, but it doesn't seem to be a major route. For all Cain knows that could be intentional. Many temples are built in the mountains or other similarly hard-to-reach locations to preserve their isolation and sanctity.