Another trend I've been seeing (speaking a general sense, I know no knowledge of this particular case) is that people who have been laid off will pull a stunt like this to try to 'go viral' and get a job. I have no idea if it works or the wisdom of it, but I've seen about a half dozen people in my network who I know were laid off in a general and impersonal layoff post sob stories about being fired by an unreasonable and mean boss.
We also fired a guy who posted about being laid off from our company, despite our company not going layoffs. Legal had to send him a little reminder about the terms he signed when we offered severance and that falsely the company feels claiming the company is doing layoffs is damaging to the company.
Overall I feel like I have become aware of more people trying to position their termination in ways that aren't truthful but they feel are more advantageous for generating interest from future employers.