Sure. I think it's one of Go's strongest points. But it's still a counter-example to the parent's point. Learning a new language does not inherently require a lot of effort, and so expecting it to be reasonably easy, especially when you're an experienced developer, doesn't seem unreasonable to me.
Go does still suffer from people bringing idioms and assumptions from other languages, and that has leaked somewhat into common libraries. I've been away from it for a while (mostly doing very low-level C on microcontrollers these days), but there was a lot of Go code I came across that just screamed "This was written by a Java developer who is learning Go!"
I had a great time writing Go web services, and I definitely agree that it was easy to pick up, both for me and other teammates. Figuring out the idiomatic way to do things wasn't always straightforward though, although getting up and running was easy.
