There are a few things you could say about the alleged Christianization that is waved out as a red flag by some of the Sunni militant groups. One does need to wonder why the Christian faith is growing in Indonesia. It is. It has gone from 8% to roughly 10%. I don't know exactly what the latest numbers are, but there has been a growth of approximately 2%.
On November 29th, 2012. See this statement in context.