I think it’s a safe bet that these parents would choose another breed if they had it to do all over again.
If the parents are so stupid they didn’t know about the dangers of a pit bull and a young child, or if they did know and took their chances with her life, I wouldn’t bet they’d do it differently. Their comments about its not having shown aggression before sound self-serving and are reminiscent of “he was a good boy who fell in with bad company” as the murdering thug is led off in cuffs.