I understand what you're saying about not destroying the illusion of reality. For me, I'm glad to have every piece of "evidence" relating to this masterpiece that I can get my hands on, including what is known as the 2003 screenplay.
But this is the way I "build" my interpretations and understandings. I look to the story, the screenplay, and the film.
I was that way at first, looking for every piece of info. But then I realized I felt disturbed whenever I heard or read someone involved in making the movie say something that jarred my own understanding of it. I don't feel that way here, because here belief is optional; if someone else's interpretation doesn't sound right to me, I can freely reject it. Not that my opinion never budges -- I've read many things here that changed my mind. For instance, I've gone from being agnostic about Jack's death -- we aren't meant to know -- to being tentatively sure he was murdered, based on arguments made here. And don't get me started on sorry/s'alright (though now that we're on the subject, it seemed to me when I watched today that NOBODY'S lips move during the sorrys!).
But when Larry or Diana or Ang or Heath or Jake or Linda Cardellini or Randy Quaid or whoever makes some statement about the movie, I feel obliged to accept it because they are the "experts." I'm not free to reject it. Yet, ultimately I don't think they
should have absolute authority. It's a work of art and fiction that doesn't exist outside of
anyone's head, creators or audience. Imaginations on both sides collaborate to bring it to life, and we all build our own individual visions. So who's to say the Brokeback in my head -- which seems plenty beautiful to me -- is any less valid than the one in Larry McMurtry's? (For that matter, I'd be willing to bet that no two of the filmmakers have EXACTLY the same vision.)
That said, if anyone directly involved ever addresses the sorry/s'alright controversy, THAT I would want to know. Because there actually IS a right and wrong answer there, which viewers will otherwise never know for sure.