What the common man s meaning of Hindi is That s an argumentum ad populum a fallacious reasoning and a reference to supposed common knowledge Common knowledge means nothing and the common people are not experts read the links As for Standard Hindi you simply misconstrue what that means the Standard is there simply to disambiguate which Hindi we re talking about The History section is actually a very short summary of the standardization exactly on topic and the essentials of the grammar and phonology are simply those shared with other forms of Hindustani so pointing the reader there makes sense