Not necessarily. Developers and product designers assume that users are going to use their product in a particular way. In my - limited - experience in those roles users tend to find entirely different ways to use your product that you never ever would have thought of, and if you had thought of them would have had significant impact on the product itself. The resulting impedance mismatch tends to be overcome with ruthless applications of duct tape, post-it notes, bending and twisting of parts and - unfortunately - the overruling of safety devices and lock-outs.