OP's mention of "consistent" is the important part.
The big problem with hyperfocus: you don't control what you focus on, or when. You can't turn it on for the big project, or turn it off when you're hyperfocused on a dumb distraction. Even ordinary focus (non-hyper) comes and goes at inconvenient times.
(I'm not sure if this is what you're saying, but hyperfocus isn't a fixation on a field of study or area of work. That sounds more like an autistic special interest, although many people with ADHD also have autism. Hyperfocus is more like being "in the zone", on a scale of hours.)
Some ADHD people find great success in the workplace, because of or in spite of ADHD. But non-traditional career paths have a ton of ADHD people for a reason.
The big problem with hyperfocus: you don't control what you focus on, or when. You can't turn it on for the big project, or turn it off when you're hyperfocused on a dumb distraction. Even ordinary focus (non-hyper) comes and goes at inconvenient times.
(I'm not sure if this is what you're saying, but hyperfocus isn't a fixation on a field of study or area of work. That sounds more like an autistic special interest, although many people with ADHD also have autism. Hyperfocus is more like being "in the zone", on a scale of hours.)
Some ADHD people find great success in the workplace, because of or in spite of ADHD. But non-traditional career paths have a ton of ADHD people for a reason.