Java 8+ is so easy to work with I think it bores a lot of people so they go looking for something more. Spring boot + jooq is easy to work with and breaking changes are slow.
I'm also coming around on Go. The simplicity was a turn off at first, but now that I've used it to implement a graphql server I like the simplicity. I don't want to have to be a programming language researcher to quickly get work done. IMO Go delivers in that mission.