From a technical POV, the main reasons I started looking at other languages (Go, C11, TypeScript) back in 2015/16 were: Better performance and less effort required for working with low-level primitives & APIs. I also got more interested again in embedded development (wrote a long blog post about it[1]). The final decision was when I started using thi.ng for a large 5 year computational design tool/project at Nike...
Many of the language features introduced with ES6 (esp. generators, iterables, spread operator, Map/Set, Promises), suddenly made Clojure/ClojureScript feel much more clunky and I felt I can have a lot more fine grained control and performance with much less ceremony/effort, once I implemented (and usually also vastly extended!) some of the key Clojure features/datatypes myself... Working with modern Web APIs (WebGL, WebAudio, WASM, async/await etc.) all became so much easier...
The literate programming (LP) approach I used initially (between 2011-2016) was using the "standard" Emacs OrgMode Babel setup which I found an incredible amplifier for my work[2][3]. Emacs was widely used among the Clojure community back then, but LP itself as an approach _was_ unusual, still is, and scared people off...
[1] https://medium.com/@thi.ng/the-jacob-s-ladder-of-coding-4b12... [2] https://www.reddit.com/r/emacs/comments/9w8i2g/comment/ec7xv... [3] https://www.reddit.com/r/Clojure/comments/9deyxe/comment/e69...