Admittedly the drone video could show a better demonstration of...

Admittedly the drone video could show a better demonstration of the battery. Ie different sizes, stress testing, rapid charging, each component separately, etc.
They should make a video that focuses solely on all the aspects of battery that they're trying to market, even if just a prototype. It's not like they're without the means to build demonstration units. Video demonstrations will definitely pull in investors and businesses.