Crime (Overseas Production Orders) Bill [HL]

While we are waiting, am I right in thinking that in the recent Facebook case it was not that the service provider did not want to provide the information that would be of use to UK law enforcement but that domestic law in America did not allow it to provide that information, and that in the overwhelming majority of cases to which this legislation would apply we anticipate that the service provider would be more than keen to provide the data, provided it can be done lawfully, and that this mechanism provides the lawful means of doing that?