I think the primary reason people are tired of new JS libraries is because there exists a certain kind of pressure that is hard to describe, but I will try. It's kind of like, "I don't want to miss out on the hottest framework"/"I don't want to fall behind current tech." The truth is, we should all ditch this mentality. Use what works for you and learn what you care about learning.
When a new JS library comes out, don't groan, take a quick peek and decide if it's worth it to try to integrate it into your workflow. I think it's great to have options and the options in web development are seemingly neverending. I'm happy I write software for the web, and I think we should all recognize how far things have come. Yet, we should always strive to make the web better for users and developers alike.