I liked the concept, and found the setting a bit weak. I probably would have survived when I was a kid, I had a tendency to count to 5000 or 10000 via multiples,[(2,4,6,8)...(3,6,9,12)...(4,8,12,16)etc] and to see how far I could accurately double a number. The latter was extremely helpful when I started learning binary. But now, I would probably be dead unless someone told me to do one of these atypical behaviors.
I don't see this as an escapist "This impairment is not an impairment at all" story, but rather a "This impairment could save your life" story. The story about the autistic girl who saw the world in a different speed is an example of the former to me. The atypical people in this story weren't superheroes at all, they were just lucky enough to have a skill that helped them survive.