All they have to say is "We have redacted some names because they are members of a foreign government. We have forwarded the relevant evidence to their legal system. Here's all the Americans involved. Just as we promised."
NOT "There is no list. Stop asking about it. Okay, there is a list. But it's fake. AND Obama & Hillary wrote it before they left office."
Does their response sound like a rational legally sound reason for not releasing the list?