I was disappointed 17th Precinct never got picked up. It sounded interesting.
I read the pilot. to be honest, I'm not surprised it didn't get picked up. Not on NBC anyway. It was pretty out there. While it looked like a procedural, trying to create a world where literally there was no science, and in fact, science and technology were going to be the "bad guys"? That was going to be a big pill to swallow.
I think for the most part the reason certain shows go forward and others (most likely more interesting) is that TV is a risk averse business. They want something that will help sell the show (it's a cop show, it's based on a show from Europe, it's based on best selling novels.)