I honestly do not see anything impressive in the latest video. To me this is just an empty done staying afloat for a few seconds. The design looks nice, but that's it. I have been far more impressed by these things:

https://www.youtube.com/watch?v=-kB-BGMXxZc https://www.youtube.com/watch?v=RMeEh5OUaDs

I feel like if it was a phony they'd have at least made it look more stable and less like it might flip over in a gust

At least they didn’t tether it:

https://youtu.be/shlZySkGq6g