No nothing to lose,
I think its a legal thing where Hak5 team are unable to sell as a "retail" device until certified,
A similar analogy would be slimming pills which are sold and state something similar to
"*These statements have not been evaluated by the Food and Drug Administration.These products are not intended to diagnose, treat, cure or prevent any disease. "
So the device is being sold as a debug/developer device and performance/radio stability can't be claimed to be 100% certified to work until testing by FCC (I guess its FCC or CE for Europe?).
Remember though that the team have had test devices most likely in their offices for months , so I'm sure they will work as currently advertised.