People need to understand something: This device puts into one device technology that has been used by everyone from criminals to governments (is there a difference? lol), in some instances for decades. This device existing and being so easy to use and combining so many tools together will be better for all of us in the long-run, because manufacturers will patch security holes and update their hardware over time to prevent these exploits. There is a lot of lax security out there that relies on simple radio communication.
By taking it from the hands of the few and putting it into the hands of the many, we all become safer because companies are actually forced to do something about this. This is no different than someone like The Lock Picking Lawyer, who sells lock picking kits through his business Covert Instruments and has a popular YouTube channel where he shows the flaws in various locks. Consumers are empowered to buy things that are more secure in the long run, and penetration testing has always been a thing since the invention of the door and extends to all modern devices.
At the end of the day bad guys are always gonna bad guy. People thought they were secure because they didn't know they weren't until now. We shouldn't penalize the company making these tools, we should penalize the companies selling garbage systems that are so easy to hack into or overload. Someone will always make these tools, whether in their basement, or in some NSA lab or corporate espionage operation.