The real problem with both "Persuasion" 2022 and Mansfield Park 1999 is that they didn't just change Anne Elliot and Fanny Price, they turned the main characters into people to whom the story could not happen. I do not believe that "Anne" 2022 would have been persuaded to give up Wentworth by her family. She's just not the kind of woman who would be. There was no reason for her and Wentworth to not get back together almost the moment they saw each other, because her personality was so different that them staying apart was illogical.
Jane Austen, whose personality was bestowed on "Fanny" 1999, would probably not have survived at Mansfield. She'd have been sent packing to Portsmouth years ago. She would have gotten in a fight with Mrs. Norris. Fanny Price's personality is just as vital to the story as her being pushed down by abuse. A different personality would make her into Jane Eyre and Jane Eyre famously did not get to stay with her wealthy relations long term.
So often, the events of the story are very tightly tied to the personality of the characters, which is why alterations to the character ruin the story. P&P 2005 gets away with making Darcy shy and Elizabeth more angry because that story can still be achieved with those traits. It's less interesting than canon Darcy's arrogance and snobbery, but it works. A snarky Fanny Price makes the story fall apart. Anne Elliot despising her family makes her story illogical.
You cannot just take a completely different person, throw them into a story and expect it to happen in the exact same way. It wouldn't.