I've no idea what the Pope said about condoms in his interview. Neither, I suspect, does anybody in the media or the blogosphere with a tiny number of exceptions among those who have advance copies of the book before its release on Tuesday.
So what has the editor of the Osservatore Romano achieved? Well: he has established the narrative to accompany the Pope's book, because whatever he says will now be ignored by the world's media, who "know" that the book is about "condoms prevent AIDS". He has divided conservative Catholics who are now in disarray about what our Church's teaching actually is. And he has destroyed the impact of the first ever long interview with a Pope.
Either the man is an idiot, or he has done it on purpose to spike the launch of the book, and to distract even the most faithful from it. And looking around the Internet today, I reckon he's been rather successful.