I don’t think they had much choice as if its assigned to an axis it will cause problems with going in and out of AP. If you don’t use AP you can assign it to an axis on one of the levers. The spad fix towards the bottom of the linked thread works pretty good other wise for the trim wheel. What would really be cool is a motorized trim wheel on an axis that would move on its own with the AP. Of course that would probably get into the prohibitively expensive range should some one actually make one. I often use to wonder with past sims what would come first. A more realistic trim or scenery that I can recognize from real life. I guess I got my answer with MSFS this past year.