> Additionally Google isn't selling Go as a product in the same way as Apple does Swift
Hmm, Apple isn't selling Swift as a product either; it's literally what they needed for their own platform, much like how GOOG needed Go for their server works.
Apple is selling Swift as a product - it is their preferred interface for constructing iOS applications!
Kubernetes and Docker, CNCF is full of commercial products.
Additionally Google isn't selling Go as a product in the same way as Apple does Swift (and where Google does publish public Go APIs it also tends to use them in the same way as their users do, so the interests are more aligned)...