Shrunk:
Again, we need context. If the parties most entitled to taking offense are satisfied with the resolution, that suggests this may have just been a very stupid mistake.
Well, I wouldn't go that far. Could just be my huge ego, but I often think that lots of people accept apologies for the wrong reasons. In this case, though I am glad it isn't going to turn into a huge unnecessary mess, at the same time, the fact that the aggrieved people are willing to accept the cover-story/apology doesn't mean that the original transgression didn't occur.
What happens a LOT in our Western societies, even today, is that because the days of Christian supremacy are not THAT long ago, lots of people still assume that the Christian god rules, and that everyone believes in the Bible as a real authority for right and wrong. What I saw in this little vignette, looks to me to be just like dozens of things I went through as a child in our American schools, where though religion was cheerfully SAID not to have an influence, in reality we were pummeled with Christian Assumptions constantly.
Hopefully, the fact that the writer of the test question was made to back off, will also make them recognize that they are steeped more in Christian assumptions than they realized, and they can work to ACTUALLY try to accomplish the open sharing and discussion of religious viewpoints that the school thinks it champions.