CP is a wedge tool for politicians. Want to get around the Constitution while having public opinion on your side? Use a pedophile. I don't have a problem sending people to jail who produce the stuff, but the idea that I could put images in someone's computer, call the cops, and get them put away didn't sit right with me.
This case in particular is troublesome. There are lots of bogus claims by the prosecution like being able to confirm the CP via hashes despite the content being encrypted. If they truly had a strong case against this guy, they'd go to trial.