Single file, 187 lines of JavaScript, no dependencies, does one thing and does it well.
I wish there was a way to search for libraries like this one. Almost every time I look for some piece of open source software, I end up writing it myself because all the solutions I find are overcomplicated and try to do too many things.
Even though I understood your point, a cursory glance suggests it only maps a JavaScript object to a SVG. Hardly something with more than one responsibility, or something you need anything other than plain JavaScript to do.
If you publish a repo with many features, bells and whistles, it is lost on me.
If you publish a repo that aims to do one thing in the best way possible, I will take a look at it, might use it, might contribute if I stumble across something that can be improved.
Repos like this should stay as small and focussed as they are. New features should go into new repos that make use of repos like this one.