Offense = PG?

I just found out about a movie today that is in theaters, but I've never heard about it. I wouldn't care, except I really want to see it, but it's an independent film, so it's not in my area. Bummer! The movie is Facing the Giants.

More importantly (because I can watch it on DVD), I'm annoyed by the MPAA and them giving it a rating of PG. I'm putting aside the fact that it's a Christian movie and that I want to support it for that reason, especially considering that it seems like a GOOD movie. According to this article, the rating comes because they're concerned that the Christian story will offend people of other religions. That may very well be the case, but that doesn't mean it should constitute a PG warning, especially considering the definition of a PG film:

The theme of a PG-rated film may itself call for parental guidance. There may be some profanity in these films. There may be some violence or brief nudity. ... The PG rating, suggesting parental guidance, is thus an alert for examination of a film by parents before deciding on its viewing by their children. Obviously such a line is difficult to draw.

So, if I'm offended that Mufasa dies in The Lion King, should it be rated PG? Offense hardly seems an adequate justification for such a thing. But maybe that's just me.