Whistleblowing would be working with the media or regulators to get out as much information as possible. Sabotaging is staying at the company and thwarting thei

Whistleblowing would be working with the media or regulators to get out as much information as possible. Sabotaging is staying at the company and thwarting their efforts. What he did (calling attention internally to messages that were already available for employees to see) barely counts as either of those. Sure, you could say he effectively quit.