IMO, Go is a mediocre language with great tooling and a great company behind it, and it turns out ultimately if you don't have the latter, the former is irrelevant.
Many comments say the opposite of this. I am not too experienced, but I do know that go has a great standard library for web apps.
Is it the best at everything? No, but it got everything exactly right for its niche imo.
Go isn't the best at anything, but it gets 80-90% of the way there on everything whereas other languages aim for 100% in one dimension (e.g., performance, static analysis) at the expense of all other considerations (e.g., usability).
You don't give the new guy at work the saw with all of the safety features removed. Or maybe you do, but you're not doing it for his benefit at least.
[0]: Not that it's not already decent.