He spoke out against Annulments, which is the Church's way of saying "you know how the Bible says that marriage is between one man and one woman for life, and that divorce is a big no-no and not allowed? Well we're gonna basically do the opposite of that". The Church was trying to expedite the process of annulments and make it easier for people to get divorced in the eyes of the Church, Fr. Korapi spoke out against it, and they excommunicated him for it. The Deep Church is real, and if you speak out against them you get silenced.