Sounds like they're describing ADHD.
(Side note after the important ADHD joke: there's an old sport textbook called "Periodization" that mentions focusing on breadth rather than depth of sports experience in early life is a better path to olympic-level performance than just going hard in a single sport from a young age.)
ADHD is not correlated with high career performance, sadly, and represents a real obstacle for those struggling with it. The current social media trend of equating ADHD to a superpower which propels people to focus intensely and excel is really unfortunate.
Those who face this issue can of course try to "gamify" their upcoming tasks to themselves in a way that will hopefully steer that focus in desirable directions, but that's not always easy. The monkey mind also resists ongoing habit formation, which is the tool most non-ADHD folks would generally resort to in order to effectively manage their overall schedule and just be more on-task.
I was responding to the comment that compared the high performing people in this article to a case of ADHD.
I agree that the features of ADHD are not consistent with intense, directed focus on specific goals as discussed in the article.
Some mental illnessess are extreme versions of traits that are often useful. It's good have one person in the village who frets about dangerous stuff, for example. Anxiety is useful at times.
But as you start to diagnose the very functional people who just need a few points to get a top uni course (or people self diagnose) ... well ... maybe you're picking up far less extreme and maladaptive versions of the trait.