I know it's desperately sad, but it's also jaw-droppingly cool at the same time. LightSabre 1.1 just got released (thanks, Ricky), with faster response and green screen power. It'll be the talk of the Office Christmas party, I tell you...
Yes, 'sad' used in this sense is saying that the person recognises that he or she needs to 'get a life' and not take pleasure in such childish activities such as using one's phone as a light sabre.
Taken in this way the term 'sad' applies to most of us who frequent the AAS website.