I learned about disabilities (indirectly) early in life. My father suffered a traumatic brain injury during his service in World War II. He was discharged, left to find his own way as best he could in a world that was hostile to those with disabilities. He did make his way, but help would have made his life a lot easier.
My autistic brother in law was also born into that same world of the 40's and 50's, and, through people I've met because of him, I've learned that what many with disabilities are looking for is simply the same chances that everyone is supposed to have in our country. They want friends. They want to participate in the activities of their peers, including playing of games. They want a job that pays enough for them to live independently.
Of course, a game controller can't bring these children a total level playing field in life. But it's a start.
In today's world, the life of those with disabilities can still be harsh. So anything that "levels the playing field"should be applauded.
I wish the best to the children and their families featured in this video.