I certainly think there is a place for a language that does not have the complexity of Scala, but reduces the boilerplate of Java. I also liked the support of non-null types in Kotlin.
And also has extension methods and lambda extensions which AFAIK are unique to Kotlin (the latter), which makes some of the stuff I do with Wasabi possible.
In general, these "traditional OOP with functional flare" languages are a very positive trend with functional idioms becoming much more mainstream.
"FP for the masses" is certainly going places.