Okay, so the fundamental question in adaptation is what you're really doing here, and this one never answers the basic one; is this an adaptation of Wuthering Heights with the addition of magical beings or is this a fantasy story borrowing from and inspired by Wuthering Heights?
And as I said, that doesn't really get answered, because it's both, and because it doesn't gel to one of those cohesive frames, it makes all the Wuthering Heights stuff sound stupid or the magical stuff sounds like a divergence from the story you're here for.
This one, frankly, did not need the Lockwood, because Hareton and Hindley do not exist, and there was no reason to have (Anna) Nelly tell part of the story is there was going to be a section where Lina (Cathy) jumps in on the narration. This one, of all the ones, could have cut the framing device of Lockwood or even the next generation breaking the cycle (which doesn't happen).
Which is why this is a clumsy adaptation, every break from Bronte canon carves out pages within the structure of Wuthering Heights for exposition about the world in which Wuthering Heights needed no exposition. So supplanted between the reimagining of scenes you feel comfortable in and then it flushes in information that frankly seems like it belongs in another book.
Wuthering Heights has weird, trippy, mystical shit, but it's part of the natural world, not a rigid societal structures. And that could be an interesting way to flip it on its head, that the rigid Victorian societal structures were the way to class-assign the witches, but that also goes no where. Lina (Cathy) is a witch, but it's not really handled creatively, WH had curses and damnation without needing spells, it all feels unnaturally attached, nothing weaves in easily, and it loses the potential it could have had by sticking too close and then launching itself too far away from the source material.
So this is an overwhelming structural error, but now I need to talk about my precious Wuthering Heights (Tw: rape and child abuse):
If you take the child abuse out of Wuthering Heights, it is not Wuthering Heights.
This could be said of all adaptations, but it's important here. There is no Hindley, there is no barbed relationship with Mr. Earnshaw, there is no toxic sibling dynamic before he dies. Lina (Cathy) is just a violent brat because she's a witch, Damek (Heathcliff) is just quiet and tolerant until he isn't anymore. Hindley is replaced with the distant male heir of the heights, which is meaningless because he has no quarrel with the other children like Hindley did, and he beats them as Joseph and Hindley did but at a much later age, so it is a very different dynamic and the bond between the two isn't forged as children.
Then that guardian rapes Lina (Cathy).
And Heathcliff just leaves Cathy. After her rape. Instead of doing, you know, what Heathcliff would probably do and set the entire house on fire and drag Cathy out by her ankles so they could run away together.
That's the thing about Wuthering Heights, it's about unfit authority figures, normalized violence, and cycles of abuse. Beating your children, as Cathy and Heathcliff were beaten, was not the most horrific thing you could do at the times this book was written, it was standard discipline, but the reasons for and severity the beatings is where these authority figures were at fault (at the time). None of the adults in Wuthering Heights were empathetic enough to gentle their hands towards the children they were hurting, but they weren't doing anything illegal, technically. They failed as parents on an emotional level; but on a societal one, they weren't reinventing the wheel when it came to corporal punishment. Hindley then became the authority figure and the beatings became out of control because he was unfit to run a household because of the way this household was run when he was a child in it, etc.
It is very important that there was no rape in Wuthering Heights.
Okay, well, done to Cathy, and this is an Isabella-less WH.
Heathcliff left Cathy with her brother, in her childhood home, with Nelly, where she was acting like she was too good to be with him. He knew she'd be fine.
Damek leaves Lina alone with her rapist in a home she has no legal claim to anymore. His revenge no longer matters because the amount of danger he leaves her in is inhumane, and everything he is angry at her for when he gets back no longer matters because even if he loves her he didn't try to protect her from her rapist.
Damek sucks, and that's after comparing him to fucking Heathcliff.
After her death, instead of marrying her daughter to his heir, he marries Lina Jr. himself, so Lina Jr. takes on the role of Isabella and Cathy Jr., so he gets revenge on his raped childhood friend who he abandons with her rapist who dies in childbirth by kidnapping, raping and abusing her daughter.
Heathcliff's revenge was rarely about physical violence, it was about control. He didn't want to beat Hindley for beating him, he wanted to ruin Hindley's life from the inside. He wanted to take something Edgar loved, so he took his sister. He wanted Cathy to suffer, so he enacted this conspiracy to lure Cathy Jr. back to the heights and have her marry his son because when you are as abused as Heathcliff, people are toys, and that's just how he feels like he has control.
And what's most important is that he fails, tremendously, at breaking Hareton and Cathy Jr. and they break the cycle of abuse that had broken him and Cathy.
Damek marries Cathy Jr. himself, which removes the distance from the OG character's control of the situation, and enacts the abuse on her that Lina received that Lina was not fucking complicit in. There is not Hareton. There is not righting the wrongs of the past generation.
Heathcliff sounds like fucking prince charming after this book.