Google actually was good, so there's probably some good information in this documentation. If nothing else we can perhaps figure out what "went wrong."
Edit: I've been reading the blog post that appears to be the main person the leak was shared with and there's a lot of in-depth analysis being done there, but I'm not seeing a link to the actual documents. This is a huge article, though, I might be overlooking it.
The problem is that the litigation was entirely "just", as far as the legal system goes. It's an open-and-shut case and everyone saw it coming. The Internet Archive basically stood in front of a train and dared it to turn, and now they're crying the victim. Doesn't exactly entice me to send them donations to cover their lawyers and executives right now.
They really need to admit "okay, so that was a dumb idea, and ultimately not related to archiving the Internet anyway. We're not going to do that again."
Note that I'm not saying the publishers are "good guys" here, I hate the existing copyright system and would love to see it contested. Just not by Internet Archive. Let someone else who's purpose is fighting those fights take it on and stick to preserving those precious archives out of harm's way.