The Evolution of Netflix Real Crime Shows as a Genre

I hope it doesn't violate any rules, at least from what I've read it shouldn't, but if it does I'm sorry in advance.

So real crime in Netflix is for me a "safe genre", if I'm zapping around in the app and nothing seems interesting I'm very likely to go and watch something about whatever crazy (mostly) american true story about a serial killer or a bizarre case, and what I've been realising and think is kind of fascinating is how fast this genre is evolving and I want to kind of start a general discussion to see if you guys notice this in the genres you watch.

To give some contest, the first big hit on Netflix has to be Making a Murderer, the story of this down on his luck, guilty as sin redneck who was (according to the documentary) framed by the police and with that success Netflix tried for a while to recreate this lighting in a bottle moment, either by producing some new pro suspect story or buying some old ones like The Staircase (at least here in Brazil, not sure about other countries' Netflix).

However at some point it probably got old, so the production of those stories got "replaced" (not completely of course, but the number of innocent stories diminished a lot) by actual, completely guilty stories, be it some retrospective on a famous serial killer or normal, regular killers admiting in camera about their crimes, but there was at some point a change, and the producers decided that guilty people are now where the money/fame is at.

But then another twist, the tendency shifts again and IMO in the most fascinating way, it's now about thrashing the weirdos that think themselves detectives, either by giving them the rope for them to hang themselves (just give them a microphone and watch the shitshow unfolds) or by direct criticizing them, Don't Fuck with Cats and DB Cooper are in a lot of ways more about trashing the pseudo-investigators than the crimes themselves, if I would guess I think the next big tendency is probably going all the way into the bizarre, since Tiger King S1 was a huge success, thought it's probably harder to find this kind of story.

In conclusion IMO it's super cool how a somewhat niche, small genre of media evolves so fast, is it societal evolution? Is it just people throwing stuff in a wall to try and see what sticks? I don't know, but I feel like this is almost as interesting as the stories themselves.