It did a hell of a lot more then that!
The planet looks NOTHING like it does in the books.
The night-sisters are treated like the only clan on the planet. When in legends they very much aren’t.
The people of Dathomire are supposed to be human. TCW made them all either Ratatatki or Zabracks.
Also, NO ONE is shown riding rancors into battle! Come on, how could you not show something that cool!?
There’s probably other stuff I’m forgetting as well.
Well, everything with Zsinj, who isn't anywhere in Disney canon from what I can tell. Which sucks, cause Mario's Imperial cousin was hilariously awesome in his stitck and strategic accumen; he died due to what amounts to bad luck of Han stubling on the planet, and his bridge particle shields not coming up during the battle in orbit.
Also, Zabrak's and human's could interbreed, just like humans and Twi'leks, so I can buy them being part of the population.
Lack of the
Chu'unthor's wreck, and it's connection to the planet/witches, is also really suspect
.
I'm just guessing Disney wanted to jettison everything from Dathomir that wasn't part of Clone Wars era canon.
Mother Talzen was Maul's mother, IIRC, and Palp's basically kidnapped him from her as a baby.
It's a shame really, Dathomir and Hapes provide plenty of 'girl-power' to Legends, and would have probably been loved by a lot of female fans.
In Hapes you have a pirate queendom thousands of years old that no one has been able to conquer, even Palps. He only send a few expeditions in as punishment details for the officers involved, because they were always too small to even get beyond the Mists.
Space-Romania/Transylvanian with Amazon rainforest vibes and goth chicks with lazer-bows and/or Amazon princesses in leather who ride rancors made Dathomir even better after the Clone Wars went there.
I think Jedi Fallen Order did the planet justice, even if not much since the Clone Wars has.