Good summary overall. Couple of things though...
We don't really see Josy interact much with the other HOTs prior to the evaluation night in Ep 6. That's not to say it doesn't happen off-screen, but what we're presented with is her not having much interaction with them before then, so her wanting to still join doesn't come from a different and more positive experience interacting with the HOTs, she just wants to join because it is, to her, a key part of the "college experience". It's after that point that Josy has this positive outlook on the girls and sorority from having spent time with them and she tells Maya this which helps to bring her around to joining.
If Maya's issue has a resolution to it where Patrick can do nothing to her, I don't think she'd be afraid to come out. The latter though, if the problem persists, is probably more likely how a break occurs.
Honestly, I don't buy the notion that Patrick's only like this because of Helen's dying wish. There's other ways to have grandkids, like IVF, surrogacy, and adoption, and surely he's not unaware of those things. Dude's also not totally religious so it's not that either since he only does it for Helen's sake. So that and things he's said to and of Maya make me think he's just homophobic and that's a harder issue to resolve.
I've only ever revealed the Jade video on a DIK Others run even though it's not the only path where I do her. Always knew it would come back to bite him, but my DIK Others is basically a trainwreck path so I don't mind it getting out there
It's one small step for horny fan headcanon, one giant leap for likelihood to actually happen