From the perspective of a user, you make some sense. From the perspective of a language designer however, great ecosystems are no excuse for crappy languages.

From the perspective of a user, you make some sense. From the perspective of a language designer however, great ecosystems are no excuse for crappy languages. The Go language doesn't have to be crappy to provide batteries included API, version stability, and great tooling. No generics and no sum types? Those are no longer groundbreaking, they're the bare minimum. Old languages like C at least had the excuse of being created a long time ago, when we possibly didn't know better (and computers were much slower). Go's creators however don't have that excuse. They screwed up, plain and simple.