some anon over at QRV made a good point about landing in such close proximity to buildings, streets. If that "exercise" went south it would be a total cluster fuck of bad PR, clean up and possible lost lives, far and away an unnecessary risk for a "training exercise" when mock's up could be simulated MUCH more easily away from civilians.
Was seeing news reports that people saw choppers so low they could see the glow from the cockpit instrumentation