One thing I liked about Frontline is that they use to do stories that are less topical. About topics that you don't hear about in the news often like the one where they pretty much went over dispelling SIDS and also the one where they basically showed forensics in this country are a joke. They've always had topical documentaries but it used to be 50/50. Now a lot of their documentaries for the past two seasons have been 90/10 topical stories, especially about Trump which has kind of been disappointing.
I saw this one posted, but skipped it for the above reason. I might give it a chance when I get some time.