This changes the moment you go polyglot.
The main use case for my template is data science.
In here most algorithms are in Python and R.
So interop is very important, and these comes with complex setups of python + R + Clojure . So here Docker pays off.
For only Clojure I would not use Docker neither.
Even though I like the idea to know that having a dockeried workflow would allow me to run things in the cloud easely.