I don’t think he was a Christian in any sense. He pretty much says so. I think he just recognized and supports the superiority of Christianity and it’s heritage, over the threatening barbarians of Islam. His actions do not portray a religious man at all.
He wanted a Christian culture but not the Christ. Likewise liberals want the Garden of Eden but not its God, and the laws (+ clothes) made necessary by the Fall.
This Norwegian man was critically of wrong faith, and born in the wrong century. So much for texts such as “Jesus answered, My kingdom is not of this world: if my kingdom were of this world, then would my servants fight, that I should not be delivered to the Jews: but now is my kingdom not from hence.” Jn. 18:36
I have yet to hear what church he attended. That puts him in the “pretend Christian” category with me.