francisca
I got dice older than you.
And in Dragon (#26, I think) Gygax stated something else entirely; that the basic and associated lines were meant to be a continuation of the tone of OD&D, while AD&D was meant to be an evolution of the rules. As well as stating quite clearly that AD&D was not meant to imply anything at all about skill level of the players.
That issue post-dates the preface I quoted above, and illustrates the evolution in thought about Basic D&D, IMO, rather than refuting the thoughts and intent of the Holmes Basic rules.