One of a Kind (2014)
newyorker.com
newyorker.com
My knee-jerk cold-hearted reaction to this was that, while it's great that the parents of the children with the rare disease were able to get some answers about their children's condition, this sounds like a vanity project for some very rich people. Which other secrets of the human genome might we have unlocked if the money hadn't incentivized these specialists to spend time investigating down this one alleyway? Like, there's a limited amount of people in the world who study biology at this level and incentivizing them to do research in one area necessarily means that another area will be sacrificed while they do the work.
Then I self corrected. There's not a limit of people interested in researching things like this. There's a limit of funding. Any additional funding towards researching genetic diseases allows more specialists to enter the field.
And I see in the page you linked he even references his son’s condition.