The question: "Why is this interesting to me." Is entirely different and we cannot possibly start to answer that for you.
We can give you the executive summary though. This brings access to UE4 to people without c++ knowledge. You can compare it to any managed wrapper around an unmanaged library. Some will curse it, others love it.
They had serious reason to not provide any official scripting support in UE4. Basically there no single language and runtime that would work well across all platforms: between Python, Node.js, Mono none of them work on every platform Epic target. Some don't have good support for consoles and other for mobile platforms and maintaining fork is hard even for Epic. So instead they try to extend blueprints instead since for them there are no such problems with C++.