do you mean "why I felt this was needed"? then this link should address your question:
https://connective.dev/docs/connective-v-rxjs
if you mean "how I got to doing this?" well I was thinking of writing a piece on it, but short story is that I was trying to extend what I was working on before (connect-platform.com) to front-end in a really efficient manner (as I realized the paradigm shift on front-end means much less need for constant performance overhead of mechanisms like VDOM) and hence ended up here.
and about the docs, thanks, I am perhaps going to also independently publish the code responsible for generating it on github pages as an NPM package alongside my next project.