The news about Chuck Wendig and the end of his work relationship with Marvel have been making the rounds in the social media in the last few days; if you don’t know what’s going on, then please refer here for the public statement by Wendig. By now, I haven’t found any statement available online about this matter from Marvel.
In a nutshell, Marvel decided to fire Wendig for reasons unrelated to his projects and without any prior litigation between the firm and the author. According to Wendig, that happened for his political activism on the social media. It looks like that Marvel evaluated all the adverse reactions about this activism as a serious marketing problem for its products and acted by consequence.