Google is not the only entity that operates at scale, and simply because google does it does not mean it is the correct choice. That's kinda cargo cultish.

In distributed systems, go is fragile and dangerous -- because it will panic. IT has no supervision system, and it has the potential for deadlocks, in fact, unless you engineer around it, all coroutines and channels will produce deadlocks and can silently kill your program. When that happens you have no idea why things are broken-- nothings happening.

And this is a language without a decent debugger!