Earlier quoted context omitted.
You're either way more knowledgable than most, or there's a bit of Dunning-Kruger in play. Hard to tell. What you know is only a small part of the game anyways.
To be honest, this article scares me from using react/redux, because the author don't know how types works. (I can't be the only one)
Redux is a simple library that you can read through in a few minutes. It's working great for hundreds of thousands of users. Why would Dan's background scare you off from using it?
As for React, there's more than just Dan on the React team. (In particular, Seb Markbage is an incredibly deep thinker, and the rest of the team is great too).