I agree that it's worded confusingly, but I think I can see the point they're making. Solutioning usually looks vastly different when driven by a core team than when it's driven by higher-ups or "The Business". The Go Core team is likely more vested in the overall success of the language than the rest of Google.
I'm not certain, because - like I said - it's worded confusingly, but that was my impression.