Really nicely shot video.
Something doesn't look quite right to me about the fire though. The top logs look like they overhang too much, like they are almost half way over the fire, so if they burn through their ends will fall off and disrupt the ember bed. Having a search around I found someone else showing a bigger version but it shows how I expected the logs to be fed in.
[video=youtube;j7PSC4l0djk]https://www.youtube.com/watch?v=j7PSC4l0djk[/video]
Keeping the top logs more horizontal means you have a surface to cook on too. Logs are fed in gradually, same way you do with a star fire. The wide log that holds the top logs up acts as a heat emitter. Despite the common misuse of the term, nothing about any of these fires acts as a reflector. Logs get hot and re-emit, but all the ones that people talk about as reflectors only really work when they start to burn and are square on to the recipient, like infrared lamps. They don't warm you if they aren't pointed at you. This lay works by having that supporting log glowing and the ends of all the top logs glowing too.
Hope I haven't annoyed you too much...I hadn't seen this kind of fire before and it looks like it is a really good arrangement for that environment! Thanks for sharing.
Chris