The more I work with advanced JS frameworks, the more I think I could also have done it with just vanilla javascript (with some jquery). Webapps I made 10 years ago where no less responsive than the webapps I make now. Nor do they take more time to create. The only difference is the size of the applications. They significantly increase with all overhead of frameworks. I wouldn't be surprised when webapp development will return partly to what it was a decade ago, where small (stand-alone) libraries are preferred to these huge, batteries-included, frameworks.

edit: With some exceptions. Some webapps are huge. They are near impossible to program without a solid framework. But this is no more than 5% of all the webapps I create.