It's very niche. You have to be in a very narrow band of disabilities to be able to get use out of it. For example, lots of people who use rollators can walk unaided for small distances and might find this too cumbersome and a lot of wheelchair users can't use one or more of their legs which this requires.

Don't get me wrong, it is fantastic engineering and will absolutely transform the lives of those who can get benefit from it, but it won't revolutionise the industry.