Although the god-spoken were also deliberately genetically engineered by some kind of government conspiracy who made them geniuses with OCD: the conspiracy (I don't remember exactly what it was) got to have all the benefit of having geniuses come up with things for them, and then the OCD was supposed to keep them too distracted to take power away from the whatever group that made them. And it all worked until one girl was born a genius without OCD and then she and the Wiggins figured it all out and cured everyone else of their OCD.

Which isn't to say it isn't an affecting portrayal of the experience of OCD, just that it's not totally like "people with OCD are normal and fine, too."