I read it too, it revolves heavily around creative control:
Defendant was embroiled in a series of embarrassing public disputes whereby its non-Dragonlance publications were excoriated for racism and sexism. Moreover, the company itself was vilified by well-publicized allegations of misogyny and racist hiring and employment practices by and with respect to artists and employees unrelated to Dragonlance. Plaintiff-Creators are informed and believe, and based thereon allege, that a decision was made jointly by Defendant and its parent company, Hasbro, Inc., to deflect any possible criticism or further public outcry regarding Defendant's other properties by effectively killing the Dragonlance deal
But most of that is totally unrelated to Dragonlance, and then the authors speculate with no evidence that WotC killed the book deal based off PR concerns. Even if true... that has nothing to do with creative control. That's lawyers and public relations damage control.
