I created the Simulacrum because I wanted to do horny things, but couldn't fit them in the main story. Eldon had a lot of fans from the very beginning, so that's why I featured him first. After that, there was a Patreon poll and people voted for Jonah as the second story.
Sadly I'm not doing simulacrum content anymore. I'm harnessing that horny energy for a new project I'm working on, in the same Pervader universe. More info here: