Assange himself would agree that the emmotional impact was strengthened and has said so in his interviews: his aim is to get the biggest political impact to honour the courage of the submitter. The full video was an hour long if I recall and this was condensed into a watchable 10 minutes. Nothing was added apart from annotations and the original video was released. The New York Times is not to be trusted; they are begrudgingly reporting on these leaks. I shall give you concrete evidence that there is heavy censorship at that paper:

"Frago 242" (short for Fragmentary Order 242), was a high level dictat to troops to ignore torture by Iraqi forces, or at least not to intervene directly. This was a key expose for that release, and Assange talks of a story actually getting killed by the editors -

140 results Guardian.co.uk http://www.google.co.uk/search?aq=f&sourceid=chrome&...

And buried in some community comment section a solitary 1 result at NYTimes.com http://www.google.co.uk/search?sourceid=chrome&ie=UTF-8&...

You are not being fair to Wikileaks.