This is explicitly mentioned in the article:
> Though some have questioned why anyone intending to blow up a plane would broadcast the word bomb, many terrorist acts have relied on the threat of a bomb as leverage during attempted hijackings or hostage situations.
It still makes absolutely no sense. First of all, this is not currently a bomb threat up until someone actually makes a threat. Second of all, in the event that somebody does make a threat, the existence of a Bluetooth device named "Bomb" doesn't make the threat any more credible or serious.