What did you expect? They're not going to release all the evidences they gathered to the public the day they filled against the company. In the filling document, they don't give any precise information but you can be sure they have names, dates, and all that is necessary - they wouldn't sue if they didn't have solid evidences. That's how the law is supposed to work. Also, testimonies from third parties are important proofs because we're dealing with people's behaviors and you can be sure people abusing others are not doing it by email.
I also think their "crimes against gaming" (wtf is that...) are nothing compared to what those women had to endure, the abuse, the exploitation and the hate. Putting the two on the same level is just tragic and unacceptable.