There were many things the writers could’ve done with her, like having her hunt down Finn and Rose on Canto Bight as they are looking for the code-breaker.
I think that would have been a fantastic part of the story. Give her some depth as an angry captain going AWOL to hunt down a couple who she feels outsmarted her. Great idea. Would have also made the casino story much more interesting and meaningful.
+1
Far better than shoehorning ham-fisted obvious messages about “animal cruelty being wrong”. Also have Phasma kill DJ instead of having DJ betray Finn and Rose so it wouldn’t come across as a knock-off of Lando betraying the heroes in The Empire Strikes Back.
DJ isn’t a knock-off Lando. He’s one of two character foils for Finn. He’s the devil on Finn’s shoulder contrasting with Rose who is the angel. He takes no sides, is motivated entirely by his own selfish interests and makes a deal that only benefits himself. Lando makes a deal partially in self-preservation, but also that he thinks will be best for the people of Bespin and for his friends. And when Lando’s deal goes south, he helps instead of doing a cut-and-run.
Lando is a knock-off Han Solo.