Eccentric and extraordinary bodies have the potential to puncture the illusion of the universal that UD champions, disorienting and, more importantly, reorienting how we conceive of access and equality.
Rather than thinking of people with disabilities as "others", we should be helping them by creating more accessible technologies and information, but also by creating a dialogue about what would make their lives easier and how they live with a disability and see if we can create something out of their experiences. As technical writers, we aren't always going to have the answers even know what questions to ask. Going to someone and listening to them and their experiences is essential to making the best possible product for the public or any consumer.