Given that I've posted a couple of times a little off topic, I'd also like to give my main feelings on the cancellation. I think it's a real shame given the direction things were going. Season 3 was a genuinely good season of television and if it had been that quality from the start, I imagine we'd be in a very different situation. Circumstances also played a part. Had the timetable been sped up by a couple of years, we'd probably be getting a season 4, even given the exact same seasons 1-3, so that's unfortunate.
Rather than be annoyed at Rafe, or anyone else though, my main feeling towards everyone involved with the show is gratitude. It seems clear to me that Rafe put his heart and soul into doing the best he could with the show, regardless of whether I agree with all the choices he made. I always thought that WoT would be far too hard to turn into a good tv show to ever see it happen, yet they dealt with some aspects of it better than I could have imagined (some blunders also, don't get me wrong). There are characters, cultures, scenes and moments that I never thought I'd see on screen, that I'm super happy to have been able to see brought to life.
There are also a huge number of other people who did a great job on the show, both actors and behind the scenes. Some no doubt cared more than others, but particularly seeing interviews with many of the actors, it's clear that they took the job of representing their character very seriously. I loved the cast and some of the performances were brilliant, it's a real shame for them that they don't get to continue the show. Some of Zoe's work in season 1, Madeleine as a damane and Josha in Rhuidean jump out immediately as outstanding but so many cast members did the show and the books proud with their portrayal.
Not that they'll read this, but to everyone who gave it their all, I wish them all the best in their future careers and I'll be rooting for them to succeed in whatever they do next.