That's hardly an apt comparison. As jimi_dini pointed out, GAF is a regulated community. You speak the language designated by the TOS, or you risk a ban. You accept these conditions when registering an account. Nintendo can't operate their business this way.
People tend to over-estimate the relevance of English world-wide.
Is like a group of people discussing the viability of the death penalty in a society, someone mentions de color of the outfit the penitent should wear during execution. Suddenly the pros and cons of the penalty are based around the argument of a uniform color. The mention of Neogaf was just a paralel on how a vast communtiy integrated by people of different vernacular consolidates around one language. English is been adopted worldwide as a secong language by many countries, not to mention the penatration of the language through the nternet and social networks. Basically working like what the "Speranto" tried to be.
What's the point beating around the bush so much with just an example (that maybe wasn't of your liking) when the point is right there to discuss?
The point been: NO EXCUSES. There's no excuses for not having chat among friends in a Nintendo console. It doesn't have reasonable arguments against it and it something the fits along within Nintendo's "personal interaction" policies.
This was quite the piece of work since it gave the apologists yet another straw to grasp and diverted the conversation away from the main issue:
My first match in Splatoon with voice-chat:
"Ready everone?"
"Qui és?"
"Hvar er stökk hnappinn?"
"닥쳐!"
Add to the above outrageous argument, the one that implies that not having chat capability of any kind during a match is a way to differentiate Nintendo online shooter from the competition. Is like having an offline multiplayer only Splatoon and combating the complainers by saying it is a feature to diferentiate the game from other multiplayer games.