If that is all Facebook is seeking in their suit, then I am fine with their lawsuit- and I am glad that Namecheap is holding out for a final, legal court order in a court of competent jurisdiction. Facebooks PR piece trying to paint Namecheap in a bad light is something I am not okay with. Namecheap is right not to give up this information without legal due process.
Would the registrar normally be sued here? I would have thought it'd be against a fictitious defendant, with a Doe subpoena used to find out their actual identity.