I couldn't agree more with your comment. If you found your favorite framework, which is still maintained and gets the job done, then stick with it unless you have very good reasons not to (and "it's uncool to use this long established framework" isn't one of those reasons).

I saw so much flawed frontend code which wasn't written by bad coders but by people which try to use always the fanciest and newest thing out there. Even if the docs written in marketing language claim otherwise, there's always a learning curve and it doesn't make any sense to switch the framework as soon as the learning curve getting flat.