I think the reason why React has shown so much staying power is that as apps get larger, they don't necessarily get more complex from a management perspective. Components, for the most part, are very self contained and with modern toolchain, you can easily see dependencies and refactor components.

This is a very different world view from $() and {{}} from earlier concepts where you hook onto globally named things. In React (without redux) you can nest and make independent memory mapped components. Redux was a terrible start in the React world, but thankfully hooks have eradicated it from most people's memory.