I think it's HN echo chamber. A lot of articles here about new exciting technologies, but when you look at job postings for example this is not the same song. I'm very excited about Elixir for example. There is a new Elixir blog post/article/github repo posted on HN every day, you would think that Elixir is the new cool thing. Well, not easy to find companies that actually use it.
It's built on technology older than Java. I'm not sure most people need what it offers immediately, but it's certainly a safer bet than most new things. Including CPython3 and Perl6.