The cuffs and collars are both unfused. That's one of the great things about them. They are an Ivy/Trad styled brand, and unfused shirts go with that aesthetic. I consider it a good thing.
I get that it's part of the vibe. My complaint is more functional, if you're going to put 36" sleeves on a 16" collar at least make the cuff stiff enough that it won't crumple up under the weight of the sleeve.