You are 100% correct. When you give developers a new set of tools they are inevitably going to use them. Some will understand and use them well. The overwhelmi

You are 100% correct. When you give developers a new set of tools they are inevitably going to use them. Some will understand and use them well. The overwhelming majority won't. And in an enterprise environment where you have a higher turnover of developers and tight deadlines it will be the equivalent of a ticking time bomb. And because the framework is centered around Play which has/had a good reputation it won't invoke that suspicious, foreign language feeling in developers that it probably should. I very much suspect that the future of Scala is going to rest in the hands of Guillaume Bort's ability to wrap any of the nastiness.