I'm not sure that posting the original story helps your cause much in regards to the ethical infraction. In fact, it just reassures me why I don't like the idea. I believe you that it got a rise out of your co-workers, the web viewers, it made me feel all mushy. That still doesn't discredit that fact that it's an ethical infraction.
This is an age old argument that as I matured in this business I realized why you don't do it. Really we are to deliver the news without any suggestive material that makes me think one way or the other. We give the story and the facts and you be the judge. That piece was something more for a production co. rather than a broadcast news station.
After this you could talk about a number of things that we do to alter video. Really doing anything but airing raw video is suggestive. But music is a big no no in my book. I still stick my guns about web content. If you won't do it on the tube don't do it on the net. The same ethics apply because you are still a respectable/ethical broadcast news station in both areas.