Thanks for the feedback. I apologize if I make the reader think I want Java goes away. That’s not my intent. In fact I love the fact we could still use Java and Kotlin interoperably.
My article is just to bring to attention some deficiencies of Kotlin support in Android Studio and hope they could be addressed in the near future of the of the release. i.e. I filed the Kotlin Coverage issues months back, but don’t see it get fix :(