They were written by people with political axes to grind who primarily want to make their personal world view known. They don't reflect the show.
This is a crime drama elevated by a uniformly terrific cast. It's neither left- nor right-wing in tone, really. It's about a justice system that is still trying to catch up to state-of-the art forensics, and examining past convictions that occurred when we were still in the forensic "stone age." Yeah, there's some local political corruption in the story line, but I've lived in big city America all my life and know it's often just a fact of real life.
Joe Anderson, who plays wrongfully convicted Terry Kucik, will totally convince you he's a blue collar, Phillie street kid. In real life he's a Brit with impeccable UK thespian ancestry. His acting is that good. But really, the entire cast is bringing their A games (especially Marin Ireland), which makes for some great TV.