It also detailed Amaterasu assisting in the genocide of an entire tribe of Nippon people. Now isn't that a grotesque image for the "sun goddess"? More like fucking sun
Anyways, Hao himself only found out about Christianity and the Gospel in 1172, 5 years before he was baptised in 1177. So, this wasn't antagonistic at all. It was just what Hao described as his visions and memories from/of the "gods".
Praise Christ The King.