Congrats to the researchers. Looks like it has some potential.

I think using visual programming languages for teaching concepts is a good idea. They're great for establishing the logical constructs of computer science, but they are lacking in talking about data structures and state storage in general. I think a more advanced visual teaching language should place a lot more emphasis on teaching how data structures work, which is arguably more important to learn about computer science in the long run. But perhaps that's a bit advanced for such a simple application.

Again, nice work!