I think it is fair to say that the "customer" does and should drive any standard.
I don't see the need to draw the conclusion you seem to be drawing from that statement.
I'd agree with you if the author had not chosen to couch his argument as this situation being a case of white customers imposing a standard upon black players which the black players better heed if they want to continue to enjoy the white money. The implication is that it is an unnatural standard to expect the black players to heed.