I guess he saw no harm in releasing one himself as it acurately reflects his original intentions. However, he does state his opinion that once you put a movie "out there", you lose all possession of it - it now belongs to the audience, and changing it can only risk alienating those who came to love the original version, something that George Lucas could've done well to bear in mind.
Or maybe Meyer's opinion is
just an opinion. Sure as hell GL doesn't need to take lessons from a far less successful director than he. Art
is selfish. It needs to be. Otherwise it's impersonal. Just
work. Better that GL maintain his artistic integrity and adjust his work until it's as close to his original intention as possible than to be just another Hollywood hack and settle for less than his best just because an audience that
won't outlive his work
might get upset at the changes. People have expiration dates. Art is
forever.
As he stated himself, "art thrives on restrictions".
That's a cliche. Doesn't make is so. Art thrives on energy and unfettered imagination. Restrictions kill your energy and limit your imagination. Yes you might have to be creative to work within the limitations but is it going to be as satisfying and creative as your original conception? Probably not>
God save us from cliches but even more so from those that quote them like gospel!