Magazine articles, public discourse, etc. are fine. We all want to know "why", and usually turn to the media for answers.
As for tv shows, documentaries, books, etc., if you really want to lump this movie in with that stuff, well, then it must be shameless, disgusting exploitation pure and simple. That's certainly what those "first on the shelf" books that come flying out after any tragedy are. Personally, I don't put this movie in that category. But the event is so recent (the bigger the event, the longer it remains "recent".) that it still feels like exploitation. Toss in the fact that movies, by their very nature come across as fiction parading as fact, and it just doesn't seem right.