What do you mean "the lack of a component system"? There's Mount, Component, Integrant. The last thing any language needs is to "encourage" some kind of program

What do you mean "the lack of a component system"? There's Mount, Component, Integrant. The last thing any language needs is to "encourage" some kind of programming. And Clojure is just that - it has small, stable core. The rest can be done with libraries.