UNIX was re-written in a clunky unsafe systems programming language, by being free beer due to legal impositions on research work, its adoption settled the future of this language across the industry.
Yet even C supports lightweight generics, so they must be worth something.
The thing is, Google is paying most of the development costs for Go and Google controls Go too. It makes sense to adapt the language to their needs. They already do stuff like creating new network protocols because it will reduce their costs.
I've heard multiple times that Google Cloud has the best support for k8s, and that people moved to it because of that. Is that what you meant by making a market?
Yet even C supports lightweight generics, so they must be worth something.