I’m not sure of the motivation or sincerity of this video on YouTube, but it does outline three valid points on why your web site should be web accessible.
- Ethics; it’s the right thing to do.
- Enlarges your audience; competitive advantage.
- It’s the law (possibly, depending on country/state).
I’ll add a number 4, which the video mentions, and that’s Search Engine Optimization (SEO). Not sure if this company even realizes that better accessibility usually translates to better SEO.
Also, the video is illogically named “Documentation Usability Tips” ‘Website Usability’, which itself is not accessible since it doesn’t correctly describe the content of the video.