Really? Hmmm.... in my book a father who spends a lot of time in prison for felonys doesn't get high marks for being a good dad. In fact, I think I would put him in the crappy dad category.
I see a mother saying that her kids are ashamed of their name. Maybe she's pushing it and maybe she isn't. I don't know how long she's been with her current husband.
I can say from experience that our son hated having a different last name than us -- he lived with us for four years prior to our adopting him. Having our last name was really important to him.
Some people need wiping from a kid's life. My son hasn't seen his biological father for many, many years and we have a wonderful relationship with his (the father's) parents. They're an extra set of grandparents to my son. They tell their own son to stay the hell away.
I'll reserve judgement until I know more of the story.