The point here appears to be very inexpensive and requiring very little skill to build. Basically only the electric equipment and the aileron hooks are not made from common cheap household items or flat TV packaging trash.
Certainly you can improve this design in many ways, while making it lighter, sturdier, and higher-performing at the same time. It would take quite a bit of skill, more tools, and a variety of more interesting materials.
"Flite Test" have been designing ridiculously cheap, low-skill DIY flying things for many years now - at the same level of "turning trash to an RC plane." Definitely worth checking out if you're interested in the space.
Agreed about Flite Test. They have kits using water resistant foam board that will perform and look better. Also this delta wing has options like being able to purchase the motor kit needed:
Sure, that's why people have been doing this design for 20 years. Homebuilding included ;)
I agree with the grandparent, it's of course interesting and it's a different audience, a lot of the "drone" crowd nowadays is purely quadrocopters, but like, this was pretty standard stuff back 15 years or so ago, for the electric parkflyer crowd.
But much like every piece of software nowadays is an "app"... every model airplane is a "drone" now, and drone people aren't really familiar with the variety of aircraft that are possible because of the dominance of the quadrocopter. Like yeah, welcome to what the rest of the hobby has been doing while the drone community has farted around with quads for 15 years ;)
Certainly you can improve this design in many ways, while making it lighter, sturdier, and higher-performing at the same time. It would take quite a bit of skill, more tools, and a variety of more interesting materials.