This reminds me so much of the ClojureScript "win". I love that JS is rounding into shape as a serious language, but the version turmoil! CLJS was "done" when it came out, so the CLJS developer is insulated from any churn.

I know little about Dart/Flutter history, but it sounds like ClojureDart might do a lot for Flutter development if only for CLJD's stability.