Not to restart the legality issue, but I don't understand why some will go through all the debate as they have above, or act as drone police when they don't know the facts, and a simple question to the right person could resolve the issue.
It was a simple question they wanted answered, was he flying illegally. The simple way to get the answer is to just asked the poster of the video or the PIC. Example: "Great Video! How were you able to get these awesome shots? Were you part of a first responder team, or lucky enough to get them prior to the TFR? Thanks for sharing."
I am sure that most legitimate (and legal) pilots would be happy to answer the question to share their experiences, especially when they are able to fly and produce some historical video.
If they were flying illegally, then that is another story for the proper people/authorities. And yes I do know the implications of someone flying illegally, especially during disaster operations, safety, bad UAV rep, etc., and I do not condone these flights.