Hey, over the past 2000 years, Christians used to battle over whether Jesus was a virgin or had Mary Magdalene as wife, whether Jesus was a human son of God or God himself or both, whether the Old Testament is the work of evil or the prediction of Jesus, whether private ownership is evil or should rich bishops and aristocrats be respected, whether there are multiple centres or was Rome ordained to be the single one, whether the assembly of Western Rome priests is the Holy Ghost and thus instructive in maintaining and developing the understanding of God, or should everyone be allowed provided that they go back to the roots, whether one priest (the Pope) is infallible and so on. A new revelation doesn't look that strange to me (especially considering the teologists of the Catholic Church and the gnostics), and as for heretic, hell yeah,  all Protestants resp. Catholics would count as such, had either side won the 30 Years War or the earlier the Schmalkalden War.

_{*Lunatic*, n.
One whose delusions are out of fashion.}