I would think not, but it meets the legal definition of blackmail. However, if damages occur as a result, a civil suit is always in style. I teach School Law in principal prep courses, and blackmail is something we cover--which is why this jumped off the page at me when I read it. Not a lawyer, and I would never guess how seriously this is, but here is the definition:
"the action, treated as a criminal offense, of demanding payment or another benefit from someone in return for not revealing compromising or damaging information about them."
That is EXACTLY what this is, shared on social media. I would assume that if the reporter pushed this, it could get this far. I do not get into the litigation stuff--just the laws and how to avoid stuff like this.