Fighting dogs are generally animal aggressive, not human aggressive. In the old days of dog fighting, biting humans was a dog-destroying offense. Don't want that trait if you have to be hands-on with the dog for hours at a time training.
Also, the media has fixated on pit bulls (American Staffordshire Terrier) as the de facto bad guy so, no matter the breed involved, it will most likely be reported as a pit bull.
Have a read and see if your opinion gets altered any: https://worldanimalfoundation.org/dogs/nanny-dog/
Coffee and a joint