Substitute Mormonism into the equation. Still have no problem? How about Christianity?
I would have no problem at all. Learning about other people's religions is an essential function of a rounded education. When you take God entirely out of the education of children you teach that God is irrelevant. Religion plays an extremely important role in politics and history and to remove any discussion of the beliefs and practices of the major religions is to deny the role that Religion has had in the history of this planet.
So no, I would have no problem about having presentations by various religious groups about their history teachings and practices in the public school arena.
BTW are you suggesting that Mormonism is not Christian?