I would have no problems owning one of his dogs or having a friend or neighbor own one.
I saw a show on his dogs as well, although it was on Animal Planet. Out of the 20 odd dogs that were taken, only 2 had to be put down........on e for its aggression, and one for an illness.
Not only did all these dogs go thru temperment testing, one of them is a therapy dog and visits people in hospitals. Many (if not all, can't remember) of the others went to the BadRap organization who has extensive experience working with bully breeds. These dogs did not go to just anyone. And I believe they all went thru training courses with the new owners.
And a "tricky trigger" for what? Going after other dogs? Since they all went thru temperment testing prior to being released for adoption...... .......they are no more likely than any other dog on the street.