I mean they basically have a single purpose programming language (AFAIK Flutter is the only relevant use case) and it is taking them years to add ergonomic improvements to the language that would make day to day dev much easier.

Meanwhile they spent colossal effort and broke half of community packages (including a bunch of first party ones) with null safety. I'd say go for low hanging fruit first.

Because the language is so limited it's impossible to solve this via library, unlike say JavaScript.