"The key point here is our programmers are Googlers, they’re not researchers. They’re typically, fairly young, fresh out of school, probably learned Java, maybe learned C or C++, probably learned Python. They’re not capable of understanding a brilliant language but we want to use them to build good software. So, the language that we give them has to be easy for them to understand and easy to adopt. – Rob Pike" [1] (emphasis mine)
You and I: we're not smart enough to use modern language features. And it just so happens that the language features and practices that we can handle are the ones that Rob Pike likes and settled on as good in the 70s and 80s. Anything from the last 25 years, we're not capable of understanding.
Honestly, part of many bonuses of leaving Google at the end of the month (after 10 years there) is that I hopefully will have the choice not to use Go and its heaps of insulting boilerplate... but I also hopefully won't have to deal with that kind of arrogance.
[1] http://nomad.uk.net/articles/why-gos-design-is-a-disservice-...