From Westword.com:

“The ADA requires state and local governments to make accommodations for disabled people, particularly in regard to major life activities,” he says. “And many disabled people have less ability when they’re attacked in their home to retreat to a point of safety or get behind cover from which they can change a magazine. They may have less mobility, or some might have only one arm, for example.

“So it’s more difficult for them to change magazines than do other people — and therefore, even if the magazine ban were constitutional in general, which we argue it is not, the people with relevant disabilities are entitled to reasonable accommodations to larger magazines.”