The assumption that accessibility could make the site more static also doesn't have to be true. Including accessibility in the process doesn't have to be more difficult or take longer to develop because of the additional features you have to include. If organizations consider decoupling content from the presentation, like apps and websites, then they'll allow for accessibility in a much more manageable way. It also allows for internationalization supporting different languages and supports search engine optimization. So when organizations are not focused on adding in accessibility later, rather, they are considering how to properly design software from the start, that allows for accessibility to be included more easily in the beginning.