This would be a good time to actually document all the little things that doing this requires at https://wikitech.wikimedia.org/wiki/Tool:Bridgebot. The current docs read like I wrote them right after I learned all the bits and didn't remember what I had to learn. :)
I'm sorry that I did not understand the power dynamics here. I guess I assumed that there was consensus and did not actually push for proof that that conversation had occurred within the Bengali language community.