This is a great idea, but I'm not sure of the legality in various jurisdictions.

The video has a disclaimer to only use this on one's home network for protection. However, less than a second later it is shown in a car, presumably for wardriving.

The text of the page says in passing that multiple attacks can be launched, yet only one is described. If I need to deauth people on my network, I think I'll do it myself.

Great idea, though! Thank you for sharing.