In this world where religions are as numerous as hairs on an ox, each country and region has its own distinct set of regulations concerning religion.
Cults might be blacklisted for eradication in one country due to their activities gravely violating that country's laws, but that doesnôt mean they will receive the same treatment in other countries. Sometimes, for political reasons, some countries may favor cults deemed heretical by unfriendly nations, nurturing them into pawns to antagonize their rivals.
The Harvest Mother Cult, intending to revive the Old Lese Kingdom under the aegis of the Earth Mother Church, would certainly be seen by the Dragon Spine Empire and the Kingdom of Gistas as a heretic cult to be purged. However, this doesnôt imply that it is universally despised in autonomous regions; for various political reasons and historical connections, the autonomous region of Cadria is a fairly stable neutral ground on the Southern Continent.