Earlier quoted context omitted.
React has been around for 7 years. ES2015 has been around for 5 years. React has become the de facto lingua franca for front end development. Could you imagine some CTO or technical lead saying, "We're not going to use React because it's too new and unproven." React has proven itself. Facebooks has 100K+ components. There are no unknowns there. Using jQuery or vanilla JS instead would be way more problematic and have…
Not "new" doesn't mean boring. Boring means not using a technology (a framework, or a language) when not needed. Don't use Javascript on the frontend, when not needed, stick with one CSS pre-processor, one database, one cloud provider, one orchestration tool, one CI tool. Be frugal with your stack, and it will payoff.
That's a totally optional component that now needs to be updated, used in your build pipeline and Lord help you if you install it with npm and it isn't updated for a couple of years.
I'd add boring really means boring, yes that kind of boring (zzz) ;)