Considering the pretty docs, I'm guessing you're trying to get people to use this. It would be useful to have the value proposition front-and-center (e.g. in your README).
If someone is in the React mainstream, they use React. If they like the devex of React but want something simpler/more streamlined, they use Preact. I'd appreciate a "This is why you might choose this library instead of Preact. This is why this is a new library instead of a patch to Preact. This is an honest assessment of when React/Preact is a better choice than Million." section.
There are often tradeoffs in library development. Being honest about the ones you chose helps other developers trust you.