See, I think it's very, very hard to judge what's gone on behind the closed doors of an intimate relationship unless one is somehow witness to it.
We know Jack was publicly begging for PayPal donations during Covid when Louisa was living with her (and presumably sharing household expenses). But we don't know whether or not Louisa confronted her about it.
We know Jack admitted on Twitter that Louisa had told her it was a terrible idea to "crowdfund" a house. She tweeted about this quite sulkily, like she'd been told off.
We just don't know -- over the months of that relationship -- how many soft and gentle conversations were had, or outright shouting fights, about Jack's grift and wild spending. It's entirely possible that Louisa tried very hard to get Jack to stop the grift and change her ways. And it's possible that she tried to help by linking her up with opportunities to do an honest day's work through her media connections.
Jack tweeted fairly often about being chaotic and having put Louisa in difficult situations where she was juggling a new, extremely busy, job and Covid lockdown. Louisa has, to her credit in my view, never spoken about any of this publicly.
For all we know, Louisa threatened to (or even did) shop Jack to the authorities. Or that Jack's financial misdeeds were the final straw that broke them up.
As for Channel 4 doing a big expose of Jack's behaviour, I think it was always unlikely. Not because the newsroom would be protecting Louisa, necessarily, but because the story would need a lot more meat to stand up -- Jack is very small fry when you weigh up the public interest of all the other investigations Channel 4 does.
There was never going to be a big Jack takedown on TV, unless as part of a bigger item about internet grifting or something.
What we do know for certain is that Jack's easy access to the media has gone. She is no longer quoted as a subject expert or writing columns or having news stories about her stolen bank cards or her misgendering, or any other of the many things she used to spout off about.
And it's entirely possible that her cancellation has been partly brought about Louisa (and/or her allies) putting the word about that Jack is not an honest broker and is not to be platformed.
It might not be justice of the kind that involves handcuffs and a perp walk but, in its own way, it's solved the problem and removed Jack from the limelight. The punishment of losing her narcisstic public stage is a huge consequence for her and her ever-dwindling income, with no proper plan to develop an honest career path, is part of that punishment. That, combined with the Shattenstone interview (and who knows whether he did some background digging by talking to Louisa herself?) and the social media forces of Twitter, Tattle and MumsNet have crashed Jack's grift.
If I was Louisa, I would want as little public drama about all of this as possible. I would want to get hold of my life, recover my sense of self-worth, focus on my career and my meaningful relationships (including with SB), and put a firm boundary in place around any dealings with Jack. And it looks to me (from a totally outside perspective) like that's what's happened.