Calling dharma law instead of religion makes people accept that it can change

Evidence

So long as people look upon it as religion they will not be ready for a change, because the idea of religion is generally speaking not associated with the idea of change. But the idea of law is associated with the idea of change, and when people come to know that what is called religion is really law, old and archaic, they will be ready for a change, for people know and accept that law can be changed. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 999

Categorization

• XREF: Core to the reader’s goal: explains Ambedkar’s strategy for making caste annihilation conceivable - reframe scripture as amendable law.