Thanks for writing this post, very informative. Nice to see Lisp mentioned as they code structure means, as you rightly point out, rapidly prototype. Personally I use a mixture of Clojure (a lisp for the JVM), Java and Python.
Clojure gives me access to the JVM and all the Java libraries and any external jar libs (on Maven etc). Added with the libpython-clj library you have a very powerful AI/ML coding framework that leans on Python's excellent tooling but the JVM for balanced execution. Best of all worlds!
So yes, Lisp doesn't have the libraries, but Clojure certainly does!