Java & Spring is a good choice whenever you want your application to work and be maintainable 10 years from now, without having to replace the framework and half of the libraries you used. I see few good reasons to ever use something with unstable ecosystem (like Javascript with NodeJS) over Java these days.

Stability is a good point, although I am curious where JS and Node stand there now. They're not at the level of Java or .NET by any means, but the JS ecosystem has definitely begun to slowdown over the last few years. I've used express for the server and winston for logging for years and years now and they've very stable at this point.

I guess I'm asking this as an open question: Where are we in the "move fast vs stable" spectrum with Node these days? Definitely not rock solid, but it's moving in that direction I feel.

Not just the time, but the environment, the OS as well. Where you can run JVM, there's a pretty good chance you can run your app.