I feel like calling Janet "A Clojure" is doing both a disservice. It's more like a "Clojure-like but smaller on purpose" programming language, and it's also (self-described) for "exploratory programming, scripting, and fun side projects" rather than Clojure's intended target audience.

Nothing wrong with that, having different target audiences makes sense and is probably preferable, but Janet is more than just "Clojure without the JVM" much like C# is more than just "Java without the JVM".