"While the Jehovah Witness is a recognized religious sect in Indonesia, it is expressly forbidden for any religion to actively promote their religious doctrine to differing sects or religions."
You're free to be a Christian - but shhhh! don't tell anybody. Exactly how dictatorships work. Like in the old East-European countries and the USSR - it was allowed to be a Christian, AND it was allowed to be an atheist, but ONLY atheist propaganda was allowed, NOT Christian. Finely tuned rules. Indonesia is a corrupt Moslem country, and like in many of the Moslem countries - and Hindu - , Christian Groups are allowed, but not foreigners and not preaching to Moslems. There are no JW missionaries in Indonesia, so these were tourists trying to spice up their holiday a bit thru invigting to the Memorial, but that clearly was too much for the smiling and friendly Indonesian authorities. Fascist corrupt nations are themselves alike.