Thanks for the link! I love these kinds of discussions!
I have heard this "you don't have to compile it" argument, 'it' being some interpreted scripting language. I would respectfully counter as follows:
Similar tools exist for statically typed languages. For example, there are gradle and sbt watch modes that incrementally compile statically typed java or scala code whenever you click save. I've done some heavy duty scala development before, and despite the scala compiler being one of the slowest on the JVM, the fact that it can incrementally compile code as soon as I click save means I hardly ever notice the time it takes to compile. It's almost always done by the time I'm ready to test the results (or better yet the watch task compiles and immediately runs the tests while I continue working on the next thing).