Here is their thinking. Buckle up.
They purchased the company and got the IP. With this also usually comes the obligations of the company to pay the royalties already established.
They did not want to pay the legacy authors, so anything they make with the characters they own can't do anything like the legacy books. They say the legacy books are no longer canon so anything they make is not needing royalty.
No problem... so next we do away with Luke's academy. Kill Solo. Kill Leia. Give c3p0 a red arm. Make sure none of those characters do anything from the books. There! no one can say we took IP from the books.
Make new heros like Rey/Finn/Poe/Rose/BB8 and push for a new understanding of the force. Splash in on Hollywoods love of identity politics instead of just showing how diverse a universe is we have to turn it into a lecture. Some of it works well like Asoka/BB8/Andor/RogueOne/PrimeLuke/Solo/Syndicates some of it did not like Acolyte/Rey/TheDagger/Palpatine/Snoke.
What to do now... it's not making the money like we want... we need to pivot away from what did not work and try to salvage the lore.
But they kept making money off the legacy book prints. They tried to claim don't have to pay the authors royalty because they are not the old company.
They only talk to authors under NDA to cut each individual authors new deals and get some of that sweet IP and reduce royalty without the authors taking too each other.
Some of their IP is secured that's why you see characters like Thrawn coming. They pivot to the lore that works with characters people like is what you see with Maul/Ventress/MandoGrogu. Dave is trying his best to stich the lore. They will lean hard into force balance and Grey force use. They may revisit untested characters from legacy like Plageus. If they can correct the lore to show that Anikin was special again and the force was just keeping balance it could work.
We steer the parks and merch away from the new characters that are not working and bring back the legacy characters there that they own before they butchered them.
Now you understand Disney.
They wanted to screw the authors royalty but still use the IP but instead of paying they selected to scortched earth and ruined the main things people liked about StarWars and are now doing recovery.
But the starwars universe is already dark and gritty and there's lots of stories to tell. They will triage what they did to the old guard they butchered and create the next Gen from Rey/Grogu/Ventress/Maul/AnyoneDaveCanSave and start over with the working Grey force use and keeping balance.