I'll offer a different take: Clojure is settled. It found its niche: a small/medium group of experienced professionals who like its practicality and power. There's a comment somewhere else in this section that Clojure devs are more experienced on average than JVM devs. I'd like to add another stat from the State of JS survey[0] that went out a while back. Developers who used ClojureScript had the highest salaries and most years of experience when compared to other compile-to-js languages.
This narrative makes intuitive sense to me. Clojure is not the most beginner friendly language. It goes harder on functional programming concepts than the popular scripting languages, which is a bit of a learning curve. The cultural tendency to prefer smaller scoped libraries to broader frameworks means puts more cognitive load on the developer, who has to decide which libraries to use and how to wire them up. But this is a positive attribute for a more experienced developer, who might have strong opinions on how an application should be structured.
This narrative makes intuitive sense to me. Clojure is not the most beginner friendly language. It goes harder on functional programming concepts than the popular scripting languages, which is a bit of a learning curve. The cultural tendency to prefer smaller scoped libraries to broader frameworks means puts more cognitive load on the developer, who has to decide which libraries to use and how to wire them up. But this is a positive attribute for a more experienced developer, who might have strong opinions on how an application should be structured.
[0] https://2018.stateofjs.com/