It is very bad for there to ever be a bomb on an airliner. There are actually several people at any given airport whose entire job is to prevent you from bringing a bomb (and plenty of things that are not bombs) onto an airplane! Despite this, one employee of a drone company , and a coworker who reported it to the DoD was then fired.
Drone manufacturer mostly builds UAVs and is a supplier of small drones to the U.S. military. An open question, however, is what they were doing with an explosive-strapped drone on a commercial flight that also housed over 200 other.
Security officer Mark Anderson became aware of the event about a month later, and alerted the DoD and higher-ups at the company to the situation. In retaliation, Anderson says AeroVironment limited his duties and eventually fired him. In response, Anderson filed a wrongful termination lawsuit.
AeroVironment released this statement on the lawsuit:
AeroVironment believes the complaint contains baseless legal claims that are without merit. The Company will defend itself vigorously once it is served with the complaint, consistent with its ongoing commitment to conducting its business with the highest standards of ethics, safety and integrity.
There are still plenty of details we'd need to understand the full scope of this story, and they may come out in the future. In the meantime, well, hopefully none of this is a lesson you need to learn.