Generally speaking here we like to encourage users to share with other users. This isn’t to say that we should share our final products, but the act of sharing ideas, knowledge, issues that plagued our development cycle can be as productive to other users. It is a little different with the other areas on this Forum devoted to showing final products, where users rarely build libraries or toolsets, but instead design single-user resources, which themselves take the majority of development time.
The tool itself seems well thought through. In particular, your demonstration scene shows a clear understanding of the aesthetic that cut-scenes are used to providing. I thought that it fulfilled its purpose without getting in the way of the game itself, which can be an issue for developers who get caught up in the act of developing, rather than completing their goals in the manner they originally intended.
One idea that may interest you is to develop an Add-on that mirrors the functionality of your program. It would allow for nice features such as referencing blender objects in drop-down selectors.