I speak as a severe traumatic brain injury (TBI) survivor.
I feel that a TBI may have its benefits. The source article is probably a showing of an incredibly lucky case. I know that I only have a handful of positive side effects, and nothing "magical" like this.
But the negatives... oh man, the negatives. I would never choose to experience the negatives again. I endured the side effects for two years and they're incredibly frustrating. You wonder if every moment is a "brain injury moment" and doubt yourself at every decision. It means you're wrong almost all the time and everyone around you tells you so.
There's not much more frustrating than that. One positive that I've found is I'm incredibly open to negative feedback: I understand and accept I am probably wrong. I would have much rather learned this a different way.
I should also note in my last neuropsychology test, I was found to have eidetic memory, specifically the emotional memory: I remember my surroundings when an emotional event happens. I've had this my whole life but, to be honest, I included it.