It's great that the representatives from the company sent him the relevant parts of the schematic to help him connect his arm to the interface board. Products aren't often built with accessibility with mind and seeing DIY projects like this inspire better solutions for these groups.
Not only that, but it must be incredibly rewarding to work on something that actually helps people. In addition, they got to work on something that's really cutting edge or even futuristic in a way that most technology work isn't.
It's a huge win all around, and the world be a much better place if more people in tech did stuff like this than figuring out more effective ways of getting people to click ads or spy on them.
