One of the best parts of Hibiki is how you can encapsulate functionality easily into libraries (even 3rd party JS like D3). Even if the library requires JavaScript to create, using it looks just like HTML with custom tags. Once more functionality and components are wrapped into Hibiki libraries, writing simple dashboards, forms, and tools will look more and more like simple, clean HTML.
Yes, except you have to be a JavaScript dev to make apps with them. They are great tools, but not great for all apps and all developers. Hibiki is built as an easy to integrate alternative when you just want to get a tool built quickly, or if you aren't a JS expert.
Here's a simple example that displays a scatter plot of data: https://tests.hibikihtml.com/test-d3.html (source code here - https://github.com/dashborg/hibiki/blob/main/static/test-d3.... ). The plot is just written as <d3-scatter-plot data="*$.data"></d3-scatter-plot>, data is fetched with "GET https://testapi.hibikihtml.com/api/d3-test"