It's becoming more popular. Kotlin, Swift and now C# 8.0 have pattern matching (well, close enough at least). I sure hope other languages take note, because you are right about it essentially being a solved problem.
Yep! Scala's pattern matching is so far ahead of Kotlin's, vis a vis destructuring, that it strains the conscience to say Kotlin has pattern matching at all. FWIW I find both to be enjoyable languages in which to work.
