Turn out dev decided to disable all old orgy scene (orgy and orgy2) then make a new set called "partyorgy" scene which currently only available for Lovisa, Rebecca, Dakota, and random AF npc id 32.
So dev disabled all old orgy scene -> "rework" home event feature (function the same as bf btw but more button to click) -> make a new set of orgy scene called "partyorgy" -> Too lazy to make those new scene for each character -> move on to making new quest like before "rework".
Not gonna lie, I've been playing this run for 180+ in-game days, on and off over the course of 2 IRL years, and I never once seen an orgy (or lesbian content). The home Arrange Event always says, "You can only arrange an event between 4pm and 8pm." That's around the same time most of my characters are off doing horseriding to maintain happiness and get influence.
Moreover, the "main event" and "floor crawler" designations seem to have strong stat requirements (i.e. high corruption, low willpower) and it has potentially strong negative effects. From a gameplay mechanics standpoint, I don't never saw the need to use it; the rewards are abysmal (a few points of happiness or practically nothing). The only reason I think it's used, is for roleplay reasons or just to see the scenes once. Correct me if I'm wrong.
Meanwhile, I've done many pool parties at the gazebo because there aren't as strict time and stat requirements, and the rewards are just as good (+5 happiness, +1 affection on every participant) with no negatives. It's a bit annoying having to goto the yard, then the gazebo to activate it; when thematically, it's the same thing as an event. It similar to how there's so many education options, but they're all spread around the UI (e.g. you can 'lecture' at both the Shrine and Gazebo, but they're different functions, and that's also different from giving a private lesson. Then, there's the Academy lessons, which btw are incredibly weak at slowly gaining stats. Plus, there's training).
I like that this game has so many options, but due to how you interact with the interface, with many nested functions deep into menus, I constantly get the feeling I'm missing something. Without the automation mod, it would be even worse. The fact is,
I am still missing a lot, and often forgetting to do things, even though I've been playing for quite a while.