Completely reasonable to at least wait and see for stuff Google launches. Go has survived long enough to adopt. Flutter (the only reason to use Dart anymore) hasn't, and is exactly the sort of project they regularly kill off, or decide they got wrong and release Flutter 2 with no migration strategy.
This shows me you have not used nor even heard about Flutter, because not only have they released Flutter 2, they have also released Flutter 3 recently.
