I think they are referring to the famous Robert pike quote (though I disagree that it implies a lack of talent from its users, it just means that the language was designed to be practical):
"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."
It's usually used in a tongue in cheek manner to mock Go which is usually pretty funny but it's disingenuous to argue that it seriously implies that go programmers are not talented.
