No, it just means there is nothing in Go that would cause a D or C++ programmer to switch to it. The feature set of D and C++ is a superset of Go feature set.
This "they laughed at Einstein, so I must be right too" mentality is pure fanboyism.
>>Grue3+(OP)
As a (mostly ex) C++ oriented engineer, there is a hell of a lot that would make me prefer Go to C++ for a lot of tasks. A language is not about its features, it's about how it facilitates what you need to get done.