And the only reason these people can't use an electric wheelchair is because they might collide with another object?
Somehow, that sounds unlikely.
I think their bigger issues would be around moving in an inappropriate direction (into traffic, off a drop, backing over a baby or pet under/behind the wheelchair, over a grating, down a steep hill are a few of the things that come to mind quickly).
And of course, if the GOSY system doesn't work properly, or fails, who's going to be on the hook? GOSY first, but they can't even pay a $100k court judgment, so Imasen next. I'm guessing Imasen isn't going to be thrilled with that situation.
Those who cannot learn from history are doomed to repeat it.
GEORGE SANTAYANA