Isn’t it the opposite? A common “superpower” observation for people with ADHD is they excel at rapid context switching and have an advantage with multitasking, like in crisis response, problem solving, or keeping track of multiple predators.
I’d love to see a source, because it’s a first time I hear about it and it’s definitely not a case for me, an ADHD person.
The key aspects here are "crisis and predators".
Context switching is a common and accessible state, but it's severely taxing and relies on stress. To the point that ADHDers might purposely 'proctastinate' to make use of this stress.
But, not only is it not good for the system to constantly rely on stress, it also means that everyday /mundane / low stakes things simply can't utilize this "superpower" effectively.
At least, how I interpret and navigate my own bouts with ADHD