I can see both sides. I teach React to newish coders, and classes are easy for them to grasp...and then immediately create labyrinthine monoliths. At work where I do React, we emphasize small components with limited and segmented logic (ideally pulling as much logic out of the React parts as possible - and this is most easily done by avoiding classes).

At the same time, I've a passion for trying to make code more maintainable - which often means avoiding too much abstraction and keeping logic plain and up-front, where it can be found and followed, so I share some of your concerns.

But I'm excited about this. One of the best parts of React has been that the same logic that makes a good program makes for a good react app. Treat your components like functions (regardless of whether they are classes or not) - small, single purpose, decoupled from state - and you'll have an easier time. Hooks look to help that.