That's not the main reason for paying more though. The main reason is because there's usually a clause in an increased severance package that says you won't sue

That's not the main reason for paying more though. The main reason is because there's usually a clause in an increased severance package that says you won't sue the company for compensation. It's not clear from the article if this new ruling precludes those types of clauses. If it does then it most definitely will reduce the size and type of severance offers. I read the article as saying that the severance agreement can't prevent you from discussing work and severance related issues with co-workers, unions or the NLRB. If the restrictions are just those then it may not have that big an impact on severance sizes.