Another perspective: If the studio had sued, they'd have gotten the information in the discovery process anyway. So you might as well give them the information

Another perspective: If the studio had sued, they'd have gotten the information in the discovery process anyway. So you might as well give them the information early; that will increase the chances that someone at the studio will make a sensible informed decision. (If the information were confidential, you'd want to insist on putting an NDA in place first.)