It really depends on what kind of family they ended up with.

I've taken in such a dog myself, 14 years back. Ours was being trained for fighting, but was never involved in one, best I can tell. On the basis of the training, she has always been other dog aggressive, but never to humans. That other dog aggressiveness has been an issue all her life, even to the advanced age she is nowdays. Scared to death; Her inter-dog skills having been twisted as a part of the training process.

I wish the adoptors well. It takes a special kind of person AND a person with a very good intuitive understanding of normal dog behavior to take on such an animal at all, much less as a family pet. If that's the situation here, these dogs are very lucky indeed.