> You are correct to an extent, but its a fallacy to assume the language and tooling have no impact on the culture or people it attracts
If the company is doing anything web related it will have JS people somewhere right? And it might also choose to make everyone full stack (so doing both Go and JS) or making some of the teams hybrid. That's quite common.
I don't really see much difference between a company that chooses Go to a company that chooses Node (or Ruby, whatever), they both have their pros and cons and it doesn't tell me that much about the people I'll be working with.