Another important point that the likes of that reclaim temple handle miss is that "indigeneous" - "mainstream" interaction is a two way street. (1/N) https://twitter.com/GhorAngirasa/status/1249685055091265537

Apart from many theories about mainstream Brahmanical dieties having tribal roots, many indigenous dieties like karuppar, selli-amman, pechi etc are accepted for what they're alongwith their non Brahmin priesthood by Brahmins and other "Brahmanical Castes". (2/N)

Thus, this is a two way street and not an elimination of the very roots of indigenous faith systems that usually follows their interaction with bible thumping spiritual bandits. So, the interactions are way way different. What other purposes does this serve? (3/N)

Tamil Writer Jeyamohan captured the essence of the Brahmanical (and Buddhist) mainstreams as aggregators. Thus, the interactions between the Brahmanical orthodoxy and tribal practices often make the latter mainstream. Best example - cult of Shri Jagannath of Puri (N/N).