I'm gonna sound very old person yells at cloud but I don't care, I feel like I need to say this. We all (well most of us) know that messaging Neil with any headcanons/theories/wishes/hopes/dreams to do with the show is a no-go because it could potentially compromise the story he wants to tell or ends up telling. And yes, he is a grown up who chooses what to respond to etc and I think it's wonderful he engages with fans and answers a lot of lovely and interesting questions about his process, writing and journey etc.
However, there is another reason not to send theories and ideas about how the show should go to the show creator in the hope of a response: it doesn't matter. It doesn't matter whether a theory is correct, or a speculation may or may not play out. That is why fandom exists.