I want to send a quick message to anyone planning to buy this camera and excited for the film sim dial: Sorry if it seems like some of us are putting you down. I can imagine how spinning the dial and seeing the film sims change would be a pleasant way to enhance the feature, and if you only ever shoot in single-shot mode, I can see how the old drive dial felt like a bit of dead weight. Camera design is hard because as others have said, there are way too many features to have them all on dials, even on the X-T5, there will always be someone who's needs are relegated to configurable buttons.
Honestly though, I don't think that's who we're debating with in this forum.
A message for those who have X-H, X-S, or X-T cameras and to whom the X-Txx cameras are just a curiosity: Please imagine you were going to use the X-T50 as your only camera when having opinions about it. It seems like there's a lot of people here who think it's a fine idea because it will never affect them, rather than because it makes the X-T50 the best camera it can be