Our company uses Go. Most people who join have no experience in Go yet usually they can get comfortable with the language in 1-2 weeks to start contributing. I know nothing about Node/JS but I'm sure that takes much longer?
A lot of what makes anything hard to learn are the non-obvious gotchas. The design philosophy of golang is aimed at avoiding the non-obvious gotchas and the creep-up-on-you-at-scale gotchas.
Your people can pick up go reflect package or go routines/channels and co in 1-2 weeks and start contributing? impressive... most people can pick up for loops, if,switch statements, variable and function declaration in a week in any language as well...
In fact, a lot of non programmers use JS regularly to write scripts in the browser. I imagine your people know how to program before hand... So what do you think takes longer to learn? mastering go threading model or being able to add interactivity to the DOM?
For me, the go threading model is easier. I just can't stand DOM and web programming in general. Currently working on a problem doing some computation across dozens of cores on multiple servers and go makes it a lot easier to spawn the 1000 goroutines and coordinate between them. I guess everyone has different interests and perhaps it is similar for those we hire.
Because you didn't take the time to learn the DOM, that's all. I doubt learning a simple composite API made of dumb nodes is more difficult than writing thread safe programs in Go. I'm not talking about tastes or interests, I'm talking about ease of learning.
Go isn't 'easy to pick up'. For loops, if statements and co are basic, and they are in all languages, that's my point. There is nothing particularly easy with Go.
It is definitely easier to write well than js IMO, and harder to make a big ball of mud in.