I don't think this was a whistleblower issue. Rather than responding with a yes or no, I think we should consider if breaking a law in the furtherance of whistleblowing is justified. If someone reveals classified information, does claiming "whistle blower" status automatically make the initial crime excusable? I disagree. Otherwise why not make it legal to divulge classified material? Then blowing the whistle can be done safely without fear of prosecution because then no law was broken.