I do wish they would remember some of the previous shortcomings, though.
In a way, I feel like security teams have it easy. Just look at whatever vulnerability worked 5 years ago on old frameworks. Solid chance it is easily exploitable on frameworks getting going today.
Can you perhaps point me to old concepts that are used in vuejs or react libraries like mobx?
To me their approach seems absolutely brilliant, pushing even event handling to completely declarative code.
I'm not knocking React or Angular - I use and enjoy them both. And I find it much more convenient to have components that live entirely in the browser instead of trying to maintain a stateful UI server-side; I certainly don't find Web Forms or JSF development to be very enjoyable.
I just find it mildly amusing that front-end web development seems to continually re-discover old concepts. That's certainly not a bad thing; better to re-discover good old concepts than to forget them completely.