To be fair, there's a difference between a library and a language here. Replacing or taking on the maintenance for a library is a much more feasible option for

To be fair, there's a difference between a library and a language here. Replacing or taking on the maintenance for a library is a much more feasible option for many than jumping to a new language or taking on the maintenance for an entire language (as it's not just the compiler, it's also custom tooling, debugging, plus Dart really needs its own libraries, etc.)