I am old enough to remember the event. I was 6 when I saw the photo of the dead bodies in the jungle on a German news magazine cover, was quite shocked, especially seeing kids in my age lying around there. I didn't really understand why they did this, but it was a good warning about religious nuts!
However I like this ad, this fits my twisted humour.
And the advertisement reached its goal: wheather you like the ad or not, it is discussed in the public - just like those Benetton ads in the 80s/90s.