I can imagine Jackson and Daniel looking at the farms, but not for fun; more like picking a scab if they do ever manage to get some distance from her.
I wonder if they're all in some kind of therapy to complement whatever therapy Becky's getting, and if that's why finding a therapist who works with poly groups was important beyond just the 'I'm so special' aspect - if Daniel and, especially, Jackson, are supposed to be learning how to stop enabling and encouraging her awful behaviour. There does seem to have been less of the usual blind obedience: Jackson even, albeit fleetingly, stood up to her over the new boyfriend, they've carried on gaming when they wanted to and let her scream impotently at twitter about it. I don't remember a 'delete account and suicide bait from Jackson's account' instance since therapy started. It's amazing that those are steps forward for anyone, but there you go. But if she's the focal point of any group therapy, it's just encouraging her and further infantalising her by it all being about her being out of control.
If they did push her into therapy, whether or not they're in it too, I bet it's come from Daniel. Jackson seems to have settled for the only girl that ever looked at him, but Daniel is conceited enough to think he deserves better. And it must have been incredibly hurtful when Daniel's father died and Becky's only reaction was to complain that it spoilt her birthday. And then spend all Daniel's inheritance in three months.
Oh, and I'm pretty sure she insisted ghosting was the worst kind of abuse possible. When it's done to her, that is.
