Scala isn't so much a mishmash as it is fertile ground for people to do all kinds of weird stuff that looks like part of the language. Very much like C++, with the same potential for committing atrocities. And like C++ was, it's great from a programmer perspective (long lever, you get what you want/deserve) but bad from a corporate perspective. (Somehow C++ acquired an aura of corporate respectability, but in retrospect it's surprising, considering it has the same problems as Scala: a difficult and sometimes esoteric language, hard to hire for, amplifies programmers instead of smoothing them out, easy to misuse with tragic results, might walk by a developer's desk and see them consulting a book instead of pounding out LOC, etc.)

I'm thrilled that Google is supporting Kotlin, though. Official support for Scala was never going to happen, and Kotlin sounds like a huge step up. I regret sinking so much time into struggling with Scala on Android.