system
Given the following post, respond as if you're commenting on Reddit:
human
[The Good Place][spoilers]Why is the (spoiler) suit such an innovation when demons should have always been able to create them?

In Season 4, there is a big deal about how Shawn has been able to create a "Michael suit" to make the main characters think that their friend has betrayed them. It's portrayed as a special project that took a lot of work, except...every demon already has a human skinsuit, presumably also one that needed to be created from scratch. We already knew that demons in this show looked like humans because human bodies were basically their work clothes. It was something about how it's easier to torture a human if you know what it's like to be inside one. 

At the DemonCon, Shawn makes a big deal about "Torture 2.0", that now instead of plain old physical torture, you can now torture someone disguised as someone from their life. Except, what was preventing the demons from already making human suits that mimicked people from real life? The demons clearly represent all variety of body types, races, ages, male and female, etc, so it's not like they were working with any limitations.
gpt
The bad place has basically done the same thing for thousands of years.  Humans arrive, get assigned a demon, the demon uses penis flatteners or such to torture.  Its what they always did, and it worked fine.

But they were just cogs in a machine, grinding out human misery.  There was no artistry to it, nor did they even really realize that they were bored.

Then Michael came along and tried something new.  And him trying something new inspired Shawn to try something new.

So while they always had the capability to do something new, they never had the drive to do anything new.