It really depends on what they want to accomplish. Perhaps given the choice of (1) publicly exposing the company and causing them reputational harm, and (2) in

It really depends on what they want to accomplish. Perhaps given the choice of (1) publicly exposing the company and causing them reputational harm, and (2) in X years time getting a Y$ settlement and having to sign an NDA saying they cannot speak ill of the company in return, they prefer 1. They don't seem to be trying to go the lawsuit way and they don't mention it in their post.